23L Set of Six Matte White Four Hole Casein Buttons, 1/2"

Set of six 1940s vintage matte white casein buttons. Four-hole sew-through buttons.

Measure approximately 23L, 23 lignes, 14.6 mm, 1/2"

Invented in 1897, Casein milk plastics are a type of plastic made from a protein called casein found in milk. They were popular in the early 1900s, but making it was a slow process, and after World War II, newer plastics became more popular. The production of casein plastics all but ended after 1945.

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