{
  "project": "RTVault Elephant Clock",
  "version": "2.0",
  "accessed": "2026-09-11",
  "artifacts": [
    {
      "id": "MET_451402",
      "title": "\"The Elephant Clock\", Folio from a Book of the Knowledge of Ingenious Mechanical Devices by al-Jazari",
      "display_title": "The Elephant Clock",
      "source_type": "Primary visual witness",
      "role": "The principal visual anchor for the elephant, howdah, figures, birds and dragons. A painted page can establish appearance and relationships, but it cannot establish a precise alloy or a hidden joint.",
      "date": "dated 715 AH/1315 CE",
      "maker": "Farrukh ibn `Abd al-Latif",
      "place": "probably Syria or Iraq",
      "medium": "Ink, opaque watercolor, and gold on paper",
      "dimensions": "30 × 19.7 cm",
      "accession": "57.51.23",
      "institution": "The Metropolitan Museum of Art, New York",
      "credit": "Bequest of Cora Timken Burnett, 1956",
      "url": "https://www.metmuseum.org/art/collection/search/451402",
      "image": "references/MET_451402.jpg",
      "image_original_url": "https://images.metmuseum.org/CRDImages/is/original/DP234075.jpg",
      "rights": "Public Domain / Met Open Access",
      "checked": "2026-09-11",
      "raw_record": "references/MET_451402.json"
    },
    {
      "id": "MET_451300",
      "title": "\"Design for a Clock in the Form of an Elephant with an Indian Driver\", Folio from a Book of the Knowledge of Ingenious Mechanical Devices by al-Jazari",
      "display_title": "Design for an Elephant Clock",
      "source_type": "Related manuscript folio",
      "role": "A second folio from the same dated manuscript tradition. It supplies a comparison for the elephant and driver. It is not treated as an independent measurement of the lost machine.",
      "date": "dated 715 AH/1315 CE",
      "maker": "Badi' al-Zaman ibn al-Razzaz al-Jazari",
      "place": "probably Syria or Iraq",
      "medium": "Ink, opaque watercolor, and gold on paper",
      "dimensions": "28.9 × 21.3 cm",
      "accession": "55.121.13",
      "institution": "The Metropolitan Museum of Art, New York",
      "credit": "Rogers Fund, 1955",
      "url": "https://www.metmuseum.org/art/collection/search/451300",
      "image": "references/MET_451300.jpg",
      "image_original_url": "https://images.metmuseum.org/CRDImages/is/original/DP351397.jpg",
      "rights": "Public Domain / Met Open Access",
      "checked": "2026-09-11",
      "raw_record": "references/MET_451300.json"
    },
    {
      "id": "MET_450513",
      "title": "Ewer",
      "display_title": "Ewer, about 1180–1210",
      "source_type": "Period material comparison",
      "role": "A surviving example of elaborate brasswork close to al-Jazari’s lifetime. It establishes a period comparison for worked and decorated metal, not evidence that this workshop made the clock.",
      "date": "ca. 1180–1210",
      "maker": "Maker not recorded",
      "place": "Iran or Afghanistan",
      "medium": "Brass; raised, repoussé, inlaid with silver and a black compound",
      "dimensions": "H. 40 cm; diameter 19.1 cm",
      "accession": "44.15",
      "institution": "The Metropolitan Museum of Art, New York",
      "credit": "Rogers Fund, 1944",
      "url": "https://www.metmuseum.org/art/collection/search/450513",
      "image": "references/MET_450513.jpg",
      "image_original_url": "https://images.metmuseum.org/CRDImages/is/original/DP241076.jpg",
      "rights": "Public Domain / Met Open Access",
      "checked": "2026-09-11",
      "raw_record": "references/MET_450513.json"
    },
    {
      "id": "MET_448964",
      "title": "Panel",
      "display_title": "Carved wooden panel",
      "source_type": "Period material comparison",
      "role": "A medieval example of carved ebony from Egypt. It shows the sophistication of period woodwork; it does not establish the timber species or construction of the Elephant Clock.",
      "date": "10th–12th century",
      "maker": "Maker not recorded",
      "place": "Egypt",
      "medium": "Wood (ebony); carved",
      "dimensions": "34.8 × 17.8 cm",
      "accession": "33.157.3",
      "institution": "The Metropolitan Museum of Art, New York",
      "credit": "Rogers Fund, 1933",
      "url": "https://www.metmuseum.org/art/collection/search/448964",
      "image": "references/MET_448964.jpg",
      "image_original_url": "https://images.metmuseum.org/CRDImages/is/original/sf33-157-3s1.jpg",
      "rights": "Public Domain / Met Open Access",
      "checked": "2026-09-11",
      "raw_record": "references/MET_448964.json"
    }
  ],
  "research": [
    {
      "id": "METAL_STUDY_2025",
      "title": "Different shades, various metals",
      "authors": "Omid Oudbashi, Martina Rugiadi, Jean-François de Lapérouse and Federico Carò",
      "date": "2025-11-22",
      "doi": "10.1007/s12520-025-02365-6",
      "url": "https://doi.org/10.1007/s12520-025-02365-6",
      "license": "CC BY 4.0",
      "role": "Primary analytical research on comparative metal objects; not analysis of the clock."
    }
  ]
}