Before the Garmin or Tom-Tom -- the 1939 "Arrow-Auto-Touring Chart"

Hi folks - a very neat pre-WWII travel calculator. This one is at the Library of Congress Maps division.  Note routes to and from New York World's Fair and the Golden Gate Exposition held in San Francisco in 1939. Certainly you need a good navigator, but no need to worry  about folding the map back. Anyone have one for sale?