Photographic postcard of a man with a pipe, riding a mule

This real photo postcard features a silver gelatin print of a man on a mule. The man and donkey are centered on the postcard. He is wearing a longsleeve shirt, pants with suspenders, a hat and a scarf tied around his neck. The image overexposed partially obsuring mountains in the distance. Rocks and brush are visible behind him. On the back of the postcard the word [POST CARD] is printed at the top. The words [CORRESPONDENCE ] and [ADDRESS] divide the back into two sections. Text marks the spot for postage in the top right corner. The word [AZO] repeats forming a square with a triangle in each corner. The words [PLACE / STAMP / HERE] are printed inside the square. There are no inscriptions, front or back.