4 Vintage Black Glass Hat Pins, 3 to 7 inches long, 1920s 1930s

ERA: True vintage item from the 1920s to 1930s, maybe older
MEASUREMENTS: 3, 6, 5-3/4 and 7 inches long
MATERIAL: glass, metal
Group of vintage hat pins with black opaque glass ends. One is a square, the others are differed sized rounded ends.
CONDITION: The hat pins are in very good condition. Light wear and tarnish on the metal.