Play Ball! Boys with Baseball Bat, Glove, and Ball

A Vintage Photos Theme Park photo for the theme of holding a ball.

Two boys strike baseball player poses in a backyard -- one holds a baseball bat over his shoulder and the other holds a ball in his right hand and wears a baseball glove on his left hand. The boys are dressed identically and look so much alike that I wonder if they might be twins.

This is a picture from a real photo postcard with a Rexo stamp box on the other side, which suggests a date range of 1905 to 1920.