Each is 1.25". The first is the master button from a small series of others, each picturing individual flies. First button has 3 very tiny raised bumps just a little noticeable to the touch and just the faintest spot around the first letter "S" of the title. Reverse of each has backpaper with text for the "Sportsman's Pledge." On the first button, this has about 5 small tan spots but on the second button it is clean. This second button shows the "Wunsch Wet Fly For Trout." Couple of very faint gray dots surround the center image but showing little. A scarce pair, particularly the master button for the set.