numbers stamped into it it just in front of the swing arm that says T500. That is followed by a 5 digit number that I would assume is it's VIN.
Gimme the numbers, bud. My 1970 T500R was 33126.
Honda XL1000V, Suzuki DR650, Adventure Royal Enfield, OSSA Explorer, first model XL250, 9 other offroad, road, and roadrace bikes