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davidcyclebackPerhaps its a grade school yearbook type thing, with the kids heads put on an old baseball photo. Sounds like something a school or studio might do.
What you need is someone to look at it in person and give you an idea of age. As I said, it doesn't appear 1870s, but that doesn't mean it isn't old. If the heads are superimposed, photography studios were doing type of composite/collage stuff since before the turn of the century. Those 1880s Presidential Big Head tobacco cards are just one example