Document
Post Route Map of the State of Iowa Showing Post Offices ... March 15, 1938.
Post Route Map of the State of Iowa Showing Post Offices with the Intermediate Distances on Mail Route ... March 15, 1938. (inset) Des Moines & Vicinity.
David RumseyUnited States. Post Office Department
1938
1938
United States Post Office Department
1:444 000