This photo postcard was found in family pictures in St Louis, Missouri.  Living family members do not recognize the man. He may be from St Louis, or possibly from the Southern Illinois region encompassing Randolph, St Clair, Union, Monroe, and Jackson counties.

One clue as to the time frame is on the reverse side.  There around the stampbox are the letters “AZO.” There are up-pointing arrows at the corners of the stampbox.  As we learned from the commenters the last time we had a postcard of this sort, these letters and markings date the paper on which the card is printed to the years 1904-1918.