[Hardball6]

Bought this old photo yesterday at OKC Flea Market with random chance it may be a team and/or players of some historical relevance. Are there any old school image pros out there that can help me identify this one? It is about postcard size but I checked back and there is no postcard info. Looks to be just a cool old photo. Someone has written "Hartford" in small letters at very bottom of photo that is not visible here.