On 1969Pontiac.com I've created a page for GM Vintage Vehicle Services letters. I only have 7 or so up there now, but they're all interesting. For example, there's a 1969 Pontiac 2+2 427/390 car with over 27 distinct options list (ie: highly optioned).
To protect owner's identities, I remove VINs and names before posting.
I am wondering if I possibly might have what would be the oldest letter from GM. It is not an actual letter from GM historial but a letter from GM before that department started. My letter is dated from 1973 and is an answer to questions regarding my 1955 Pontiac.