How to Date a Road Map

August 5, 2019

Figuring out when a road map was printed can sometimes involve a bit of detective work because the year of publication may not be shown on the cover or in the legend.  The table below shows the codes for the two main map producers, Rand McNally and H.M. Gousha. These codes are often found in the lower margin, printed in small type. Rand McNally first used date codes in 1919, and Gousha started in 1927. Census data and status of road construction are other clues you can use to confirm dates.

 

Rand McNally & H.M. Gousha Map Codes

Download this image as an Excel spreadsheet here.

 

How to Date a Road Map: Charlie Neuschafer

 

 

 

 

 

 

 

 

 

 

Share on Facebook
Share on Twitter
Please reload

Featured Posts

The World of Maps

October 26, 2018

1/1
Please reload

Recent Posts

September 18, 2020

September 4, 2020

August 21, 2020

August 8, 2020

March 8, 2019

December 7, 2018

November 30, 2018

November 23, 2018

Please reload

Archive
Please reload

Search By Tags
Follow Us
  • Facebook Basic Square
  • Twitter Basic Square
  • Google+ Basic Square