Don't try this at home. They're on the edge of what is noted in the bottom border as "Hoover Wall." The guy on the left is, sensibly, angling back. The guy on the right has a small asterisk mark next to his feet but there's nothing on the verso to provide any details.
Vintage snapshot, 5" x 3 1/2," gloss finish, undated c. 1950.
Very good condition.