Black Glass Buttons (Set of 5 or 20)

Vintage German black glass buttons. Would be great on dresses or shirts from the 1910s to the 1940s. They have a classic look that goes with almost any color or pattern. Sold in sets of 5 or 20 buttons. They measure about 18mm (a little less than 3/4') All are in generally good condition but may have light wear.