This is a large attractive design 19th c. matte & polished black glass pictorial black birds. This uncommon button is featured in the Big Book of Buttons. This is a thick 1 & 3/8" button and has a flaw on the back edge. Look closely at the back image where it looks very slightly out of round. About 1/2" on the very edge is sheared, but does not show from the front. Priced as is.