Dukes Up Beside the Pond, RPPC Portrait of Two Friends Play Boxing

I can never resist a photo of boxers, even of the just playing around variety. And these two look to have a lot of affection for each other. With what looks to be a barn in the distance, and a tin can floating in the water at lower right. 

 5 3/8" x 3 3/8". Good condition, general light soiling, unused postcard back. Earlyish 20th century.