I picked up a couple real photo postcards with this guy, but no ID. The other postcard has him warming up, pitching. Looks like a real Philadelphia Athletic, but my searching can't turn up anyone that resembles him. (So maybe he's not a pro, but the picture feels pro.) The photo looks like it's from the 1940s but it could be later -- pre-1955, one assumes.
Thanks! This is my first thread post, go easy.
David