You guys have done a great job here! I used frame sketches, and wheelbase to get a good idea the '38 1 1/2 ton dually big bolt is legitimate! Now, decoding the VIN.
6 TB O 53580
I can't figure out the month code!
Oakland, CA 1938 1 1/2 ton, dual wheels, 52,579th made. (Am I missing something? Whats the 'oh', or zero??
Thanks!
Tom