Wikimedi'Òc

Tractor LOC fsa.8a00522.jpg - JustSomePics

Tractor LOC fsa.8a00523.jpg - JustSomePics

Laboratory. Beltsville, Maryland; 1935.jpg - Moreau1

Machine shop. Beltsville, Maryland; 1935.jpg - Moreau1

Fermentation laboratory. Prince Georges County, Beltsville, Maryland. 1935.jpg - Moreau1

In the laboratory of the U.S. Dept. of Agriculture Experimental Farm. Prince Georges County, Beltsville, Maryland. 1935.jpg - Moreau1