#27 Loading beef fat into an oleomargarine press for the preparation of oleomargarine (margarine) oil at stockyards in Chicago, Illinois, 7th April 1919.

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#27 Loading beef fat into an oleomargarine press for the preparation of oleomargarine (margarine) oil at stockyards in Chicago, Illinois, 7th April 1919.

What Chicago looked like in the 1910s Through these Fascinating Historical Photos

#27 Loading beef fat into an oleomargarine press for the preparation of oleomargarine (margarine) oil at stockyards in Chicago, Illinois, 7th April 1919.

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