This is a Lot of 15 Vintage 1920s Cobalt Blue Czech glass buttons with gold accents. They are in matched sets. The largest round set of 5 buttons measure 3/8" each. There are 4 Hexagonal faceted buttons, each measuring 3/8", and 5 buttons with raised squares and dots, each measuring 5/16". All buttons are self shank. One additional odd button is included.