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      "alt": "Takahashi directory entry, 1902",
      "caption": "Takahashi directory entry, 1902. Printed p. 10, left-hand page, right column; PDF p. 12.",
      "credit": "Historical address book / tsingtau.org",
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      "title": "Takahashi directory entry, 1902",
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      "caption": "Takahashi directory entry, 1905. PDF pp. 10–11; entry starts at bottom right of p. 10 and continues top left of p. 11.",
      "credit": "Historical address book / tsingtau.org",
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      "retrieved": "2026-10-15",
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      "title": "Takahashi directory entry, 1905",
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      "alt": "Continuation of the 1905 Takahashi entry",
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      "credit": "Historical address book / tsingtau.org",
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      "title": "Continuation of the 1905 Takahashi entry",
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      "width": 1800,
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      "alt": "Takahashi directory entry, 1907",
      "caption": "Takahashi directory entry, 1907. Printed p. 23, both columns; PDF p. 18.",
      "credit": "Historical address book / tsingtau.org",
      "sourceUrl": "https://www.tsingtau.org/wp-content/uploads/2015/02/Adressbuch_1907.pdf#page=18",
      "retrieved": "2026-10-15",
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      "evidenceIds": [
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      "title": "Takahashi directory entry, 1907",
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      "width": 1800,
      "height": 1336,
      "alt": "Takahashi directory entry, July 1914",
      "caption": "Takahashi directory entry, July 1914. Printed p. 30, left column; PDF p. 19.",
      "credit": "Historical address book / tsingtau.org",
      "sourceUrl": "https://www.tsingtau.org/wp-content/uploads/2015/02/Adressbuch_Juli_1914.pdf#page=19",
      "retrieved": "2026-10-15",
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      "sha256": "4a441f183c734787978d894f1fdfd8e361bb4d3e8325a16ed07f584814e0d895",
      "evidenceIds": [
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      "title": "Takahashi directory entry, July 1914",
      "group": "Primary document scan",
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      "width": 2600,
      "height": 1904,
      "alt": "Takahashi in the 1939 business directory",
      "caption": "Takahashi in the 1939 business directory. Printed p. 106; NDL frame 96, right-hand page; Takahashi column in photography section.",
      "credit": "National Diet Library, Japan; 青島日本商工会議所",
      "sourceUrl": "https://dl.ndl.go.jp/pid/1263097/1/96",
      "retrieved": "2026-10-15",
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      "treatment": "Source page rendered or resized without reconstruction; scan defects retained.",
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      "evidenceIds": [
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      "title": "Takahashi in the 1939 business directory",
      "group": "Primary document scan",
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      "width": 2600,
      "height": 1920,
      "alt": "Takahashi in the 1944 business directory",
      "caption": "Takahashi in the 1944 business directory. Printed p. 185; NDL frame 101, left-hand page; Takahashi column in photography section.",
      "credit": "National Diet Library, Japan; 青島日本商工会議所",
      "sourceUrl": "https://dl.ndl.go.jp/pid/1221360/1/101",
      "retrieved": "2026-10-15",
      "verified": "2026-10-16",
      "rights": "NDL metadata: PDM (public domain). Credit NDL; source https://dl.ndl.go.jp/api/iiif/1221360/manifest.json",
      "treatment": "Source page rendered or resized without reconstruction; scan defects retained.",
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      "evidenceIds": [
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      "title": "Takahashi in the 1944 business directory",
      "group": "Primary document scan",
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      "previewUrl": "/takahashi/evidence/jacar-toyo-0324-preview.jpg",
      "width": 1800,
      "height": 1264,
      "alt": "Suzuki Toyo compensation application",
      "caption": "Suzuki Toyo compensation application. PDF p. 2; image stamp 0324.",
      "credit": "Japan Center for Asian Historical Records (JACAR), B09073080000; Diplomatic Archives, Ministry of Foreign Affairs, Japan, 5-1-0-13",
      "sourceUrl": "https://www.jacar.archives.go.jp/das/meta/B09073080000",
      "retrieved": "2026-10-15",
      "verified": "2026-10-16",
      "rights": "Secondary reuse permitted for Diplomatic Archives images with source acknowledgement: https://www.jacar.archives.go.jp/aj/www/doc/en",
      "treatment": "Source page rendered or resized without reconstruction; scan defects retained.",
      "sha256": "fb748725547e67de3cd1563269b069811914a5eed8f102b4f520848de233e1d6",
      "evidenceIds": [
        "E0027"
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      "title": "Suzuki Toyo compensation application",
      "group": "Primary document scan",
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      "width": 2600,
      "height": 1826,
      "alt": "Suzuki Toyo retrospective business narrative, image 0409",
      "caption": "Compensation file: business narrative. PDF p. 87 / image 0409.",
      "credit": "Japan Center for Asian Historical Records (JACAR), B09073080000; Diplomatic Archives, Ministry of Foreign Affairs, Japan, 5-1-0-13",
      "sourceUrl": "https://www.jacar.archives.go.jp/das/meta/B09073080000",
      "retrieved": "2026-10-16",
      "verified": "2026-10-16",
      "rights": "Secondary reuse permitted for Diplomatic Archives images with source acknowledgement: https://www.jacar.archives.go.jp/aj/www/doc/en",
      "treatment": "Source page rendered/resized; no reconstruction.",
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      "evidenceIds": [
        "E0030"
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      "title": "Suzuki Toyo retrospective business narrative, image 0409",
      "group": "Primary document scan",
      "previewSha256": "292aaa73c3d11dd63d163ef1ef6b5f7faead0c399ec5b9ff003cd5037fd6527d"
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    {
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      "width": 1600,
      "height": 1124,
      "alt": "Suzuki Toyo retrospective business narrative, image 0418",
      "caption": "Compensation file: business narrative. PDF p. 96 / image 0418.",
      "credit": "Japan Center for Asian Historical Records (JACAR), B09073080000; Diplomatic Archives, Ministry of Foreign Affairs, Japan, 5-1-0-13",
      "sourceUrl": "https://www.jacar.archives.go.jp/das/meta/B09073080000",
      "retrieved": "2026-10-16",
      "verified": "2026-10-16",
      "rights": "Secondary reuse permitted for Diplomatic Archives images with source acknowledgement: https://www.jacar.archives.go.jp/aj/www/doc/en",
      "treatment": "Source page rendered/resized; no reconstruction.",
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      "evidenceIds": [
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      "title": "Suzuki Toyo retrospective business narrative, image 0418",
      "group": "Primary document scan",
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    {
      "id": "hong-list-ad",
      "title": "Takahashi Photo Co.: a late directory advertisement",
      "group": "Document scan",
      "url": "/takahashi/hong-list-1941-spread-22.jpg",
      "previewUrl": "/takahashi/hong-list-1941-preview-22.jpg",
      "width": 1221,
      "height": 864,
      "alt": "Directory spread with the Takahashi Photo Co. advertisement on printed page 38, on the right.",
      "caption": "Tsingtao Hong List, indexed by its host as 1941/42. Printed p. 38, PDF p. 22, right-hand page: Takahashi Photo Co., 30 Shantung Road, Tsingtao, phone 2038. The scan has a dark horizontal line across the advertisement.",
      "credit": "Digitized historical directory: tsingtau.org",
      "sourceUrl": "https://www.tsingtau.org/wp-content/uploads/2016/12/Tsingtao-Hong-List-1941a.pdf#page=22",
      "retrieved": "2026-10-06",
      "treatment": "Complete spread rendered from the source PDF; scan defects retained.",
      "sha256": "ef5bec83e08559b70e9199115960e88174f896f4987ebe72eae4bcc929a7e5ba",
      "previewSha256": "ffb0f407587edbb0f753ab3df4d2b647095b72f1c410b5b928733034330383e7",
      "rights": "Inherited published image; source credit retained. No new reuse licence asserted."
    },
    {
      "id": "hong-list-entry",
      "title": "Takahashi Photographic Studio: address and telephones",
      "group": "Document scan",
      "url": "/takahashi/hong-list-1941-spread-23.jpg",
      "previewUrl": "/takahashi/hong-list-1941-preview-23.jpg",
      "width": 1221,
      "height": 864,
      "alt": "Directory spread with Takahashi Photographic Studio at the bottom of printed page 40, on the right.",
      "caption": "Same directory, printed p. 40, PDF p. 23, right-hand page. Takahashi Photographic Studio lists telephones 2562 and 2038 and 30 Shantung Road; its last line lies at the lower edge of the scan. Printed p. 53 also lists Takahashi Photo Studio under Photographers.",
      "credit": "Digitized historical directory: tsingtau.org",
      "sourceUrl": "https://www.tsingtau.org/wp-content/uploads/2016/12/Tsingtao-Hong-List-1941a.pdf#page=23",
      "retrieved": "2026-10-06",
      "treatment": "Complete spread rendered from the source PDF; lower-edge clipping retained.",
      "sha256": "67f362dbafa09f5648d531de7d5b3e6d17d55994442f3f55b30c4c274af80376",
      "previewSha256": "a949717b01089b59c7056c11c75bfca10e0f55a158c30f84906601f89f04d2a4",
      "rights": "Inherited published image; source credit retained. No new reuse licence asserted."
    },
    {
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      "width": 1044,
      "height": 1600,
      "bytes": 425720,
      "id": "immh-wedding",
      "group": "Studio imprint",
      "title": "Wedding portrait with the Takahashi mount",
      "url": "/takahashi/photos/immh-wedding.jpg",
      "previewUrl": "/takahashi/previews/immh-wedding.webp",
      "previewWidth": 313,
      "previewHeight": 480,
      "alt": "Wedding pair on a mounted studio print, with T. Takahashi and Tsingtau China printed below.",
      "caption": "Undated wedding portrait; the Takahashi imprint is visible on the mount. IMMH collection K47a, published file 47a-193.",
      "credit": "Internationales Maritimes Museum Hamburg · archive K47a",
      "sourceUrl": "https://imm-hamburg.de/tag-der-archive-2026-das-immh-nimmt-teil/#kiautschou",
      "retrieved": "2026-10-04",
      "treatment": "Complete published image, resized for the web without cropping, reconstruction or color adjustments.",
      "publishedSourceDimensions": [
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      "sha256": "4886732f305e7f34ee5c04b29fdea9ced35d22b4bfed713eca98b540923deb35",
      "previewSha256": "9a377dc3ca35493e2d41c005c17d44fbf51117dee6f067389ddb9f026bf9bbb8",
      "rights": "Inherited published image; source credit retained. No new reuse licence asserted."
    },
    {
      "sourceImageUrl": "https://www.volksbund.de/fileadmin/redaktion/KGS/Biographien/Dateien/982500/Kriegsbiographie_982500_Foto2.jpg",
      "width": 979,
      "height": 1600,
      "bytes": 350571,
      "id": "hofmann-2",
      "group": "Studio imprint",
      "title": "Hofmann: the complete studio print",
      "url": "/takahashi/photos/hofmann-2.jpg",
      "previewUrl": "/takahashi/previews/hofmann-2.webp",
      "previewWidth": 294,
      "previewHeight": 480,
      "alt": "Uniformed Karl Heinrich Wilhelm Hofmann standing beside a table, on a mount with the T. Takahashi imprint.",
      "caption": "Hofmann portrait with the Takahashi / Tsingtau China mount. Date unspecified by this image; separate from the family photograph that began the case.",
      "credit": "Volksbund Deutsche Kriegsgräberfürsorge · Kriegsbiographien",
      "sourceUrl": "https://www.volksbund.de/erinnern-gedenken/graebersuche-online/detail/a3TJy0000004eekMAA",
      "retrieved": "2026-10-04",
      "treatment": "Complete published image, resized for the web without cropping, reconstruction or color adjustments.",
      "publishedSourceDimensions": [
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        1967
      ],
      "sha256": "a4e894929551ddfe4571ea2f0015cdded4e261dc74a3b239c33bbf3aaca8ac4a",
      "previewSha256": "a2cdd87454b2161e2b30eead875ccafc6575cb7e59f00222b00bc9e96c8f1b80",
      "rights": "Inherited published image; source credit retained. No new reuse licence asserted."
    },
    {
      "sourceImageUrl": "https://imm-hamburg.de/wp-content/uploads/47a-201-1-scaled.jpg",
      "width": 1600,
      "height": 975,
      "bytes": 584448,
      "id": "immh-group",
      "group": "Comparative studio",
      "title": "A different Qingdao studio",
      "url": "/takahashi/photos/immh-group.jpg",
      "previewUrl": "/takahashi/previews/immh-group.webp",
      "previewWidth": 640,
      "previewHeight": 390,
      "alt": "Nine people in a studio group portrait on a Yung Tschang and Co. mount.",
      "caption": "Group portrait with a Yung Tschang & Co. / Tsingtau Tapautau mount. Comparative evidence of another studio, not a Takahashi print. IMMH published file 47a-201-1.",
      "credit": "Internationales Maritimes Museum Hamburg · archive K47a",
      "sourceUrl": "https://imm-hamburg.de/tag-der-archive-2026-das-immh-nimmt-teil/#kiautschou",
      "retrieved": "2026-10-04",
      "treatment": "Complete published image, resized for the web without cropping, reconstruction or color adjustments.",
      "publishedSourceDimensions": [
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      ],
      "sha256": "fc086ecbf7c89eafd62dd28058f774d989616a8f35b60c54cd0760a3c7381ee2",
      "previewSha256": "b4d6a79a6f3e2060c515e10c5ecf316ab6591d794596d5717ec8befdd4f7f748",
      "rights": "Inherited published image; source credit retained. No new reuse licence asserted."
    },
    {
      "sourceImageUrl": "https://square.umin.ac.jp/top/Private/sino_lu_li_shu_files/chintao.jpg",
      "width": 189,
      "height": 258,
      "bytes": 15620,
      "id": "nakahara-qingdao",
      "group": "Worker account",
      "title": "Nakahara during his Qingdao studio years",
      "url": "/takahashi/photos/nakahara-qingdao.jpg",
      "previewUrl": "/takahashi/previews/nakahara-qingdao.webp",
      "previewWidth": 189,
      "previewHeight": 258,
      "alt": "Young Yoshiharu Nakahara resting his chin on his hand.",
      "caption": "The oral-history page captions this portrait 青島の高橋写真館時代: during Nakahara’s time at the Takahashi studio in Qingdao. Attribution to a particular photographer is unconfirmed.",
      "credit": "中原吉晴口述《私の履歴書》 · reproduced on UMIN",
      "sourceUrl": "https://square.umin.ac.jp/top/Private/sino_lu_li_shu.html",
      "retrieved": "2026-10-04",
      "treatment": "Complete published image, resized for the web without cropping, reconstruction or color adjustments.",
      "publishedSourceDimensions": [
        189,
        258
      ],
      "sha256": "af5eb56a4b6e824757e6f3a942d072fbab46d82fba86e2542e908d964ac87dc6",
      "previewSha256": "c86c9c7f19998eb52a8137b7f41c9e2465b10b6cce8a652820b51c5c418e33b6",
      "rights": "Inherited published image; source credit retained. No new reuse licence asserted."
    },
    {
      "sourceImageUrl": "https://square.umin.ac.jp/top/Private/sino_lu_li_shu_files/profile.jpg",
      "width": 163,
      "height": 210,
      "bytes": 8595,
      "id": "nakahara-profile",
      "group": "Worker account",
      "title": "Nakahara: later portrait",
      "url": "/takahashi/photos/nakahara-profile.jpg",
      "previewUrl": "/takahashi/previews/nakahara-profile.webp",
      "previewWidth": 163,
      "previewHeight": 210,
      "alt": "Older Yoshiharu Nakahara in a formal seated portrait.",
      "caption": "Later portrait labeled 表紙の中原先生 on the same oral-history page. Biographical context; not represented as a Takahashi photograph.",
      "credit": "中原吉晴口述《私の履歴書》 · reproduced on UMIN",
      "sourceUrl": "https://square.umin.ac.jp/top/Private/sino_lu_li_shu.html",
      "retrieved": "2026-10-04",
      "treatment": "Complete published image, resized for the web without cropping, reconstruction or color adjustments.",
      "publishedSourceDimensions": [
        163,
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      ],
      "sha256": "4a83c80aa50a1641abd11f335bb64ae15d243a334825f679874fca8fd1269377",
      "previewSha256": "90acbe1f563fb6313af1d345a5b45ec3bf4f44d5255d5f99ccd9bbb9042f0fea",
      "rights": "Inherited published image; source credit retained. No new reuse licence asserted."
    },
    {
      "url": "/takahashi/advertising-fan.jpg",
      "width": 668,
      "height": 1024,
      "alt": "Surviving paper advertising fan with Admiral Tōgō, a warship and the T. Takahashi studio imprint.",
      "caption": "Advertising fan, imprint face. Nordfriesland Museum Husum, Nissenhaus, inventory o.Nr. 1491.",
      "credit": "Object photograph: Nordfriesland Museum / SH-Welt",
      "sourceUrl": "https://www.sh-welt.de/unsere-lieblingsst%C3%BCcke/objekt-des-monats-1/",
      "sourceImageUrl": "https://image.jimcdn.com/app/cms/image/transf/dimension=1070x1024:format=jpg/path/sf5275ec0be108141/image/i7df34ebf6f2a4108/version/1649106496/image.jpg",
      "retrieved": "2026-10-04",
      "treatment": "Downloaded source photograph; no color changes or reconstruction.",
      "id": "advertising-fan",
      "title": "The surviving advertising fan",
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      "alt": "Three uniformed men beside a large gun emplacement.",
      "caption": "The third photograph published with Hofmann’s biography. Date, place and individual identifications are unspecified here; no Takahashi authorship is claimed.",
      "credit": "Volksbund Deutsche Kriegsgräberfürsorge · Kriegsbiographien",
      "sourceUrl": "https://www.volksbund.de/erinnern-gedenken/graebersuche-online/detail/a3TJy0000004eekMAA",
      "retrieved": "2026-10-04",
      "treatment": "Complete published image, resized for the web without cropping, reconstruction or color adjustments.",
      "publishedSourceDimensions": [
        1775,
        1380
      ],
      "sha256": "b427f456afcc8c7e3fb6cd5a74d55bca9cfa26ac9f78dea85370f2ea74176e3d",
      "previewSha256": "ec17ef0192288a89a736c4fbdef70150fe0c4754af0a77db1a716688135702b5",
      "rights": "Inherited published image; source credit retained. No new reuse licence asserted."
    },
    {
      "url": "/takahashi/directory-1908-page25.jpg",
      "width": 639,
      "height": 939,
      "alt": "Complete printed page 25 of the 1908–09 address book, with the T. Takahashi entry in its left column.",
      "caption": "1908–09 address book, printed p. 25 (PDF p. 16, right-hand page). Full page for context.",
      "credit": "Digitized address book: tsingtau.org",
      "sourceUrl": "https://www.tsingtau.org/wp-content/uploads/2015/02/Adressbuch_1908.pdf#page=16",
      "retrieved": "2026-10-04",
      "treatment": "Rendered from the digitized PDF; page extracted without reconstruction.",
      "id": "directory-page",
      "title": "1908–09 directory: full page",
      "group": "Document scan",
      "sha256": "a763c7c007c02b9eacc04e1f8f84b05e4f47fa2bfcffe521102cf08cc1df6cb3",
      "rights": "Inherited published image; source credit retained. No new reuse licence asserted."
    }
  ],
  "limitations": [
    "The family photograph is excluded.",
    "Mainz Secker portrait and the 2018 study are linked, not mirrored, pending reuse clearance.",
    "Existing museum and biographical photographs retain their prior credits; a film release still requires rights review."
  ]
}