Vin # question

68 and older...

Only way to link a VIN to a car body is to have any of the following...

Build sheet
IBM card
Certicard
I have the build sheet. No IBM or Certicard. I have the plate on the door pillar on driver side with vin # on it and thats all. No core support or anywhere else on the body. I know my 76 Duster has it in 3 places I believe. thanks