Each is 2-7/8” with the first apparently showing the coach Robert Zuppke, who served with the team 1912-1941. Second photo is of player we cannot identify. Made by Parisian with their name on the curl. Small scattered spots on edge from 12 o’clock to 3 o’clock but still displays nicely with full gloss. Second is for game vs. Michigan Oct. 18, 1924. Pictured again is the coach “Zup” along with player “Rokusek” who was an All-American in 1923-1924. A third man wearing a necktie is identified as “G.” Couple of trivial 1/16” splits on the reverse by the metal-covered back. Curl names maker “G. Felsenthal & Sons, Chicago.” Displays Mint. Pair.