polariscope
{"id": "ld1-1643399625297-1643399667425-0", "version": "", "unitCode": "NMAH", "linkedId": "", "type": "edanmdm", "content": {"descriptiveNonRepeating": {"record_ID": "nmah_1184159", "online_media": {"mediaCount": 4, "media": [{"thumbnail": "https://ids.si.edu/ids/deliveryService?id=NMAH-AHB2017q126850&max=150", "idsId": "NMAH-AHB2017q126850", "usage": {"access": "CC0"}, "guid": "http://n2t.net/ark:/65665/bq99ca746bd-3038-704b-e053-15f76fa0b4fa", "type": "Images", "content": "https://ids.si.edu/ids/deliveryService?id=NMAH-AHB2017q126850", "resources": [{"width": 3000, "height": 2250, "label": "High-resolution JPEG", "url": "https://ids.si.edu/ids/download?id=NMAH-AHB2017q126850.jpg", "dimensions": "3000x2250"}, {"label": "Screen Image", "url": "https://ids.si.edu/ids/download?id=NMAH-AHB2017q126850_screen"}, {"label": "Thumbnail Image", "url": "https://ids.si.edu/ids/download?id=NMAH-AHB2017q126850_thumb"}]}, {"thumbnail": "https://ids.si.edu/ids/deliveryService?id=NMAH-AHB2017q126847&max=150", "idsId": "NMAH-AHB2017q126847", "usage": {"access": "CC0"}, "guid": "http://n2t.net/ark:/65665/bq99ca746bd-3035-704b-e053-15f76fa0b4fa", "type": "Images", "content": "https://ids.si.edu/ids/deliveryService?id=NMAH-AHB2017q126847", "resources": [{"width": 3000, "height": 2250, "label": "High-resolution JPEG", "url": "https://ids.si.edu/ids/download?id=NMAH-AHB2017q126847.jpg", "dimensions": "3000x2250"}, {"label": "Screen Image", "url": "https://ids.si.edu/ids/download?id=NMAH-AHB2017q126847_screen"}, {"label": "Thumbnail Image", "url": "https://ids.si.edu/ids/download?id=NMAH-AHB2017q126847_thumb"}]}, {"thumbnail": "https://ids.si.edu/ids/deliveryService?id=NMAH-AHB2017q126848&max=150", "idsId": "NMAH-AHB2017q126848", "usage": {"access": "CC0"}, "guid": "http://n2t.net/ark:/65665/bq99ca746bd-3036-704b-e053-15f76fa0b4fa", "type": "Images", "content": "https://ids.si.edu/ids/deliveryService?id=NMAH-AHB2017q126848", "resources": [{"width": 3000, "height": 2250, "label": "High-resolution JPEG", "url": "https://ids.si.edu/ids/download?id=NMAH-AHB2017q126848.jpg", "dimensions": "3000x2250"}, {"label": "Screen Image", "url": "https://ids.si.edu/ids/download?id=NMAH-AHB2017q126848_screen"}, {"label": "Thumbnail Image", "url": "https://ids.si.edu/ids/download?id=NMAH-AHB2017q126848_thumb"}]}, {"thumbnail": "https://ids.si.edu/ids/deliveryService?id=NMAH-AHB2017q126849&max=150", "idsId": "NMAH-AHB2017q126849", "usage": {"access": "CC0"}, "guid": "http://n2t.net/ark:/65665/bq99ca746bd-3037-704b-e053-15f76fa0b4fa", "type": "Images", "content": "https://ids.si.edu/ids/deliveryService?id=NMAH-AHB2017q126849", "resources": [{"width": 3000, "height": 2250, "label": "High-resolution JPEG", "url": "https://ids.si.edu/ids/download?id=NMAH-AHB2017q126849.jpg", "dimensions": "3000x2250"}, {"label": "Screen Image", "url": "https://ids.si.edu/ids/download?id=NMAH-AHB2017q126849_screen"}, {"label": "Thumbnail Image", "url": "https://ids.si.edu/ids/download?id=NMAH-AHB2017q126849_thumb"}]}]}, "unit_code": "NMAH", "title_sort": "POLARISCOPE", "guid": "http://n2t.net/ark:/65665/ng49ca746aa-43aa-704b-e053-15f76fa0b4fa", "title": {"label": "Object Name", "content": "polariscope"}, "metadata_usage": {"access": "CC0"}, "data_source": "National Museum of American History"}, "indexedStructured": {"date": ["1900s"], "geoLocation": [{"Other": {"type": "Place", "content": "United States"}}, {"Other": {"type": "Place", "content": "Pennsylvania"}}, {"Other": {"type": "Place", "content": "Philadelphia"}}, {"points": {"point": {"latitude": {"type": "decimal", "content": "39.95"}, "longitude": {"type": "decimal", "content": "-75.15"}}}}], "object_type": ["polariscope"], "topic": ["Scientific apparatus and instruments", "Science"], "place": ["United States", "Philadelphia", "Pennsylvania"], "online_media_type": ["Images"]}, "freetext": {"setName": [{"label": "See more items in", "content": "Medicine and Science: Physical Sciences"}], "date": [{"label": "date made", "content": "late 19th century"}], "identifier": [{"label": "ID Number", "content": "PH.315429"}, {"label": "catalog number", "content": "315429"}, {"label": "accession number", "content": "217544"}], "notes": [{"label": "Description", "content": "This fairly rugged and inexpensive instrument has a wooden frame, a horizontal plate of blackened glass for the polarizer, a brass stage to hold the object to be examined, a magnifying lens, a Nichol prism analyzer, and a ground glass screen to shut off images of distant objects. The whole fits into a wooden box (12 inches x 18 inches x 6.75 inches high). The \u00e2\u0080\u009cJames W. Queen & Co. / PHILADELPHIA\u00e2\u0080\u009d inscription on the stage refers to the firm that introduced this type of instrument in the 1880s."}, {"label": "Description", "content": "Ref: Queen & Co., Inc., <i>Catalogue of Physical Apparatus</i> (Philadelphia, 1898), pp. 8-90."}, {"label": "Location", "content": "Currently not on view"}], "creditLine": [{"label": "Credit Line", "content": "U.S. Military Academy"}], "topic": [{"label": "subject", "content": "Science & Scientific Instruments"}], "place": [{"label": "place made", "content": "United States: Pennsylvania, Philadelphia"}], "physicalDescription": [{"label": "Measurements", "content": "overall in case: 12 1/2 in x 18 1/2 in x 6 5/8 in; 31.75 cm x 46.99 cm x 16.8275 cm"}], "dataSource": [{"label": "Data Source", "content": "National Museum of American History"}], "objectType": [{"label": "Object Name", "content": "polariscope"}]}}, "url": "edanmdm:nmah_1184159", "hash": "aa500bc7d771651f668130bd0c955033a00b6802", "docSignature": "b201bee1164a1a34313b6ebe7d167214", "timestamp": 1663782461, "lastTimeUpdated": 1653680532, "title": "polariscope"}