{"object":[{"sourceId":{"label":"Source ID","value":"39332"},"creditline":{"label":"Credit Line","value":"Gift of Gary Davis, Class of 1976"},"labelText":{"label":"More Information","value":"This photograph was taken after Bourke-White wrangled permission to descend three miles into a mineshaft. Her mine photographs were published in the Fortune story \u201cHard Coal\u201d in February 1931. The superb quality of this print suggests that Oscar Graubner, Bourke-White\u2019s darkroom technician, printed it. Even at this early date, Bourke-White insisted that the full negative always be printed\u2014evident by the black line showing around the edges. Known as \u201cprinting black,\u201d by the 1930s thanks to Bourke-White\u2019s perfectionist standards this became standard operating procedure in LIFE photo labs then headed by Graubner. (\"Margaret Bourke-White: From Cornell Student to Visionary Photojournalist,\" curated by Stephanie Wiles and presented at the Johnson Museum January 24 - June 7, 2015)"},"invno":{"label":"Object number","value":"2005.056.009"},"medium":{"label":"Medium","value":"Gelatin silver print"},"onview":{"label":"On View","value":"0"},"media":{"label":"Media","value":"2005.056.009"},"title":{"label":"Title","value":"[Miner mops up after explosion of vein in anthracite mine, Pennsylvania]"},"classification":{"label":"Classifications","value":"Photographs"},"people":{"label":"Artist / Maker / Culture","value":"Margaret Bourke-White"},"primaryMedia":{"value":"https://emuseum.cornell.edu/internal/media/dispatcher/93401/full"},"displayDate":{"label":"Date","value":"1931"},"id":{"label":"Id","value":"205605"},"dimensions":{"label":"Dimensions","value":"Image: 11 1/2 × 8 1/4 inches (29.2 × 21 cm);Mat: 18 × 14 1/16 inches (45.7 × 35.7 cm)"}}]}