Set of four 1930s vintage red celluloid buttons. 11mm. Two-hole sew-through buttons. These Great Depression-era buttons were salvaged from a child's dress made from old feed sack material. The buttons are in excellent condition. Measure approximately 11 mm and rounded up to 18L, 18 lignes, 11.4 mm, or 29/64 inches.
Celluloids are considered the first plastic. Introduced in 1880, the height of celluloid was seen between the 1930s and 1955. It was banned from production because it is highly flammable.