Folded Dimensions: 
Open Dimensions: 
Date Location: 
Cover Description: Title and the company name are across the top.  An illustration of a convertible easily climbing a hill while powered by White Star gasoline passes a billboard coincidently advertising White Star's brand of gasoline.
Date Code:  Date located below legend - " Corrected to Mar. 15th, 1927"
Main Legend Side Features:
Opposite Side Features:  
Other: Unfortunately I don't have this map in my collection yet - however the scan of the cover has been provided to me by Richard Horwitz as a reference to the map produced.  A sample of the interior of the map, along with the legend is supplied by Dave Rowlison.
Note: Lithographed in the USA by the National Lithograph Company, Detroit, Michigan.

1927cover LegendLegend 
Map Sample