{
  "519": {
    "_id": "dialface-519",
    "_rev": "2-44f042bdb14848666b274eb248057201",
    "id": 519,
    "type": "dialface",
    "thumb_baseurl": null,
    "metadata": {
      "General Information": {
        "DOI": "10.17171/1-1-5114",
        "Title": "Dialface ID 519",
        "Creator": "Berlin Sundial Collaboration",
        "Publisher": "Edition Topoi",
        "Publication Year": "2014",
        "Subtitle": "Shahba",
        "Description": "Information on the Dialface ID 519 / Object ID 408"
      },
      "Technical characteristics": {
        "Collection": "Ancient Sundials",
        "Contributor Name": "Gerd Graßhoff, Elisabeth Rinner",
        "Contributor Type": "Editor",
        "Resource Type": "Dataset",
        "Date (Update)": "2014"
      },
      "Specific attributes": {
        "Origin / Holder object": "Museum Shahba",
        "Inventory Number": "",
        "Holder digital source": "Exzellenzcluster 264 – Topoi"
      },
      "Conditions for use": {
        "Rights": "Creative Commons BY-NC-SA 3.0 DE"
      },
      "Annotations": {
        "Subjects": "History of Science, Archaeology",
        "Version": "1"
      },
      "References": [
        {
          "type": "article",
          "id": "Catamo2000",
          "citekey": "Catamo2000",
          "collection": "repository",
          "title": "Fifteen Further Greco-Roman Sundials from the Mediteranean Area and Sudan",
          "year": "2000",
          "author": [
            {
              "name": "Catamo, Mario"
            },
            {
              "name": "Lanciano, N."
            },
            {
              "name": "Locher, K."
            },
            {
              "name": "Lombadero, M."
            },
            {
              "name": "Valdes, M."
            }
          ],
          "journal": {
            "name": "Journal For The History of Astronomy",
            "volume": "XXXI",
            "pages": "203--221"
          },
          "pages": "p. 218 f."
        }
      ]
    },
    "origin_entry_num": 393,
    "holder_id": "SyriaShahba",
    "scis": {},
    "material_id": 74,
    "references_citations": [
      "\\cite{Catamo2000}, p. 218 f."
    ],
    "version_date": "20140917",
    "dating_str": "unknown",
    "site_filter_key": "syria/philippopolis",
    "holder_filter_key": "syria/shahba",
    "version_num": 1,
    "obj_descr": "It is an example of the rare case where the conical surface is cut quite perfectly, but all the geometrical details were added with poor accuracy. The raw basalt block must have approximated to a cube of an edge length of about 450 mm. Together with four further specimens from Syria and one from Saudi Arabia, this marks the eastern limit of provenance of all the nearly three hundred known Greco-Roman sundials.",
    "site_id": "SyriaPhilippopolis",
    "material_filter_key": "basalt",
    "type_filter_key": "cone/conical",
    "dating_filter_key": [
      "not_dated"
    ],
    "obj_id": 408,
    "type_id": 4,
    "df_descr": "It is an example of the rare case where the conical surface is cut quite perfectly, but all the geometrical details were added with poor accuracy. Accordingly, an ideal cone can be fitted with a half-aperture of 24° and an axis inclined at 22° to the cut horizontal bottom plane and the top plane of the piece. The deviation of this inclination from the local latitude of 33° is still more evident if one considers the 17° by which the oblique southern front plane is inclined to the vertical, thus differing by 5° from the perpendicular to the axis. Furthermore, the only inscribed curve (see figure) intersecting the eleven hour lines defines a plane even closer to the vertical and so this by no means represents a seasonal day line. No explanation can be offered for this other than that we have an imitation of such a line (or of an auxiliary one according to Hüttig's general interpretation). All the angles mentioned are uncertain by about ±2°, mainly due to the loss of reference accuracy because the southern shoulders of the piece have been broken off. Another oddity may be seen in the fact that the joining point of the eleven hour lines lies considerably below the upper edge of the surface, where no trace of a gnomon-mounting is visible. A gnomon at that level would be geometrically acceptable but it would interfere with the reading of the first and last daily hours, while a gnomon at a higher level would avoid this problem but would impair the accuracy at any hour.",
    "references_bibliography": [
      "\\cite{Catamo2000}"
    ],
    "gibbs_number": "",
    "inventory_num": "",
    "thumb_file": null,
    "hierarchy_entries": [],
    "doi": "10.17171/1-1-5114",
    "holder": {
      "id": "SyriaShahba",
      "longitude": 36.628,
      "department": null,
      "institution": "Museum Shahba",
      "country": "Syria",
      "filter_key": "syria/shahba",
      "city": "Shahba",
      "name": "Museum Shahba",
      "latitude": 32.85
    },
    "material": {
      "id": 74,
      "category": "Basalt",
      "subcategory": null,
      "filter_key": "basalt"
    },
    "site": {
      "id": "SyriaPhilippopolis",
      "country": "Syria",
      "filter_key": "syria/philippopolis",
      "latitude": 32.85,
      "longitude": 36.628,
      "city": "Philippopolis",
      "name": "Philippopolis, Syria"
    },
    "type_obj": {
      "id": 4,
      "category": "Cone",
      "subcategory": "Conical",
      "filter_key": "cone/conical"
    },
    "resources": []
  }
}