Large white dragonfly on purple background, from Bohemia. Quite substantial, sparkly clear crystal glass domes. The settings are antique brass with an old, not-shiny look.  The backs of the brass settings are stamped in very tiny type:  'Czechoslovakia'.  1-1/4" diameter and about 1/4" thick with the dome and the small metal shank. Because of the thick glass, they weighs almost 1/2 ounce each, heavy for a button. The glass is flawless, very clear and sleek. Handmade in Northern Bohemia, Czech Republic. Limited Supply. $15.00 each.