This set of five colorful number block novelty shank buttons (showing numbers 1, 2, and 3 in raised, block-style lettering with horizontal line backgrounds for a classic "building block" or toy effect) are square-shaped and come in bright primary colors: one yellow, two green, one orange, another green, and one red.
Measure approximately 24L, 24 lignes, 15.2 mm, and 19/32. (close to 5/8").
They were made in the 1960s to 1970s, during the height of playful molded plastic novelty buttons for children's clothing. This era saw a surge in educational/toy-inspired motifs (like ABCs, numbers, or building blocks) on baby/toddler rompers, play outfits, learning-themed apparel, or nursery items, reflecting the post-war focus on colorful, fun, and subtly developmental designs for kids.
The simple square molding, raised numerals with line details, vibrant solid colors, and integral self-shank (molded plastic loop) are indicators of 1960s-1970s novelties with bold colors for visual pop.
These were produced in the United States, where manufacturers created abundant educational kiddie novelties during the baby boom and early learning toy craze. Number/block motifs tie into classic children's toys like wooden alphabet blocks, making them nostalgic favorites for preschool or counting themes.
