Standard Oil Company ... highway map [of the] United States. ([Plans of] Des Moines. Sioux City. Waterloo. Davenport, Moline-Rock Island. Dubuque. Cedar Rapids. Council Bluffs).
[Chicago] :  Rand McNally & Co., 
[ca. 1960]
Backed by: Iowa.
National Parks and Monuments.
The title on the cover reads: Iowa.