27L Set of Five 1940s Opaque White Four-Hole Casein Buttons, 5/8"

Set of five white casein buttons dating to the early 1940s, a peak period for casein button production when matte finishes in neutral tones like white were popular for everyday and utilitarian garments during and after World War II. This aligns with the simple, practical design seen here, which was mass-produced for shirts and workwear.

Era: 1940s
Quantity: 5
Size: Small
Measure approximately: 27L, 27 lignes, 17.1 mm, 43/64" (a smidge over 5/8")
Attachment: Four-hole, sew-through
Color: Milky Almond White

Material: Casein. Invented in 1897, Casein milk plastics are a type of plastic made from a protein called casein found in milk. Also known as Galalith in Europe, it was one of the first synthetic materials used for buttons after celluloid. The production of casein plastics all but ended after 1945 due to the introduction of newer plastics.

Origin: Europe, most likely Germany

Uses: shirts, trousers, and workwear.

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