| Carl Mydans View of three types of cow (dairy, beef, and dual purpose) developed at the experimental farm of the U.S.D.A. Prince Georges County. Beltsville, Maryland. 1935, November Gelatin silver print 8 x 10 ins (20.3 x 25.4 cm) NYPL - New York Public Library Farm Security Administration Collection, Catalog Call Number: 000043-M4, Digital ID: 4000645, Record ID: 2319947 LL/48458
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