Advertising card for "The Mechanic" Overalls, Shirts and Pants manufactured by Marcus Loeb & Company in Atlanta, Georgia. There's no date on the card, but I'd place it in the early 1920s. The card is blank backed. Marcus Loeb founded his company in 1899.
Judging from the piece below, I assume being located in Atlanta gave Marcus Loeb the opportunity to do work for the Coca-Cola Company. I found this on Coca-Cola Conversations.