Virtually every image of Detroit coach/manager Hughie Jennings from the early 1900s pictures him in some variation of dance his famed "Ee-yah!" cheer. Such is the case with this pinback button advertising Cogan's Hiking Shoes going as far as to print the actual cheer above Jennings' image. 1 1/4" in diameter the pin is a difficult one to find; this example exhibiting uneven toning most pronounced around the curl and at the top-right. The heavily-toned reverse is still intact advertising P. Cogan & Son's Fine Shoes based in Stoneham Mass.