44L Set of Two 1930s Blue Crackle-Effect Casein Buttons, 1"

Add a touch of 1930s charm to your sewing projects or button collection with this pair of medium-sized blue crackle-look buttons. Likely made from casein plastic (also known as galalith), these buttons showcase the distinctive glossy, marbled finish and subtle veining that make early plastics so collectible. Casein, invented in 1897 and widely used for buttons from the early 1900s through the 1940s, was valued for its ability to hold color and detail, giving each piece a unique, organic character.

Each button measures approximately 44 lignes (28 mm / 1"), with pointed domed faces and sturdy tunnel-style self-shanks for easy sewing. The crackle effect is part of the design and natural aging of the material, giving them an authentic vintage look. Minor surface wear, slight fading, and gentle scuffing on the edges are visible, typical for 90+ year-old buttons, but there are no chips or cracks that affect usability.

These buttons were likely made in the United States, where casein production flourished in the 1930s. Their simple, versatile design makes them ideal for coats, dresses, or decorative craft projects, and they are a rare collectible example of early milk-plastic craftsmanship.

Measure approximately 44L, 44 lignes, 28 mm, or 1".

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