Manufacturers recognized the enormous potential of the new rural delivery market to their bottom line. Hundreds of thousands of people across the country were suddenly in the market for a mailbox. The potential demand was sure to rise for at least the first few decades of the 20th century. Mailbox ads appeared in a wide variety of publications. Dozens of manufacturers recognized the potential of advertising to rural postal employees. After all, these would be the men and women the new customers might look to for recommendations. Few of the eager companies’ products would survive long past their initial rush to capture this new and growing market.