Each is 7/8" most with back paper by American Pepsin Gum and a few with a metal back naming maker W&H. These were issued with either red type and all six are here or blue type for which there are five of the six. The Indians depicted are identical in each color variety. Left to right are: Black Eye, Lean Wolf, Red Cloud, Rushing Bear, Sitting Bull, Spotted Tail. First in row two has single tiny gray dot at top but rest are exceptionally clean and glossy. The very earliest buttons to picture actual leaders of various tribes.