These are 7/8" to 2.5". Those in the first five rows are all from the 1930s to 1950s with the emphasis on the earlier years. Those in the last row are c. 1980s or '90s. Of the 38 buttons in the group 33 include the word "Club." Of the 38 buttons in the group 23 include call letters. Eight of the buttons include the image of a microphone. Couple of the buttons have a few tiny traces of age but mostly in the form of light surface scratching showing only in reflected light. None of the pieces have obvious stain and all have nice gloss. All are celluloid with exception of row 3 #5 and row 5 #1,2, and 3 which are litho tin. A collection built over many decades. See following related group.