Join us on Facebook: Search for 'ConcoursMustang' Private group!https://www.facebook.com/groups/concoursmustang/Indiana SAAC Fall Classic , French Lick, IN Oct 11-12http://www.insaac.org/SAAC National-Sanctioned Concours Event
I had forgotten about that "coding". It preceded the ZIP code system, and was mostly for large cities. I don't know what they called it or how it was determined. Jim