| Carl Mydans Cleaning greenhouse roof. Prince Georges County, Beltsville, Maryland. 1935, August Gelatin silver print 7 1/4 x 9 1/4 ins (18.4 x 23.5 cm) NYPL - New York Public Library Farm Security Administration Collection, Catalog Call Number: 000099-M5, Digital ID: 3969583, Record ID: 2034764 LL/48460
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