Incredible piece of original artwork used to produce the 1925-31 Exhibit cad of Hall of Famer Harry Heilmann. The photo itself which measures approximately 3 15/16" x 6 5/16" is mounted on a piece of heavy board measuring approximately 5 1/8" x 7". Heilmann's name and team are written in pencil underneath the photo and is hand-lettered in some sort of black ink or paint outlined in white. Certainly one-of-a-kind an important piece of collecting history that is seldom if ever seen.