Found a halftone colorized postcard of a locally historic ballgame played in 1908 when Cap Anson's Colts semi-pro team barnstormed the local town team (Marengo IL). I have a RPPC of the game, and knew of 2 other RPPC's from the game in the local history museum. This halftone card, based on the photo of one of the RPPC, was a new discovery to me. It was produced by the E.C. Kropp Co. of Milwaukee, while the RPPC were done by the Creators company of Elgin, IL. Cap Anson played 1st base in the game.
E.C. Kropp Halftone PC
Creators RPPC
Other known Creators RPPC from same game
