I found these two codes on the same map.
Using the following link

http://roadmaps.org/map-information/dating-rand-mcnally-and-gousha-maps/

Can anyone tell me the date of this map? I'm just confused as to which letter to use from the codes. The "L", the "O" or the "M"??


Attachments
s-l1600 (1).jpg

s-l1600.jpg




Edited by Steven C. (Mon Sep 18 2017 11:13 AM)
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Steve Coppens
Always interested in Sunoco items!
Really want a Sunoco National pump add glass!!