Vin NNumbers
you have your trim tag, build sheet(s) and the VIN number itself. these cars should have a certicard which is located in the engine bay in a pocket. most of these get removed and tossed . this is all the info you are going to get other than the door sticker. when you punch into the decoder make sure you are starting on the bottom line far left side and work your way up and you are getting every letter and number. ..you will get more help here . im not all that familiar with the 68 and earlier decoding.
quite the certicard below , huh fellas...wish it were mine lol