Document
Post Route Map of the State of Iowa Showing Post Offices ... November 1, 1936.
Post Route Map of the State of Iowa Showing Post Offices with the Intermediate Distances on Mail Route ... November 1, 1936. (inset) Des Moines & Vicinity.
David RumseyUnited States. Post Office Department
1936
1936
United States Post Office Department
1:444 000