Dealer invoice

That doesn't sound right. The VIN should be on just about every document associated with the sale. My dad has the original invoice for the '51 Ford convertible he bought new and the VIN is on it. I have a copy of the original invoice and bill of sale for my '69 Formula S (I got them from the MVA, I was only 8 when it was bought new) and the VIN is on both of them.