National Postal Museum
Advertisement for airmail service
October 1918
The Post Office Department issued this airmail advertising pamphlet in October 1918. Titled "Daily report of arrivals and percentage of efficiency for September, 1918," it boasted a 100 percent performance report for each flight that month.
🔒
Order museum-quality prints
Sign in to order prints, canvas, and more of this work. Browsing and full-resolution downloads stay free.