Found these on Ebay where my car is thought to have come from..(NCRS only originally listed Dealer Code & Zone) and @fsc66 Paul, has been a hige help! I know the tag and ruler with slogan is prior to 1980+ ownership of the dealer under Dick Perrin(1950s-1980 and prior to that his father as early as 1930). Post 1980 owned and still operated today by the Breault family. In my research I found this:
https://www.metroli.org/newsletter%2...12_08_20_3.pdf
a 1967 427/435HP Vette bought new by mechanic that worked there in 1967. This intrigued me because my car is an original 396 Pace car so thinking it might have been special ordered by someone. Meeting with son of Dick Perrin next month as he has pics of dealership back in 60's to share. He remembered the 'Vette and strange mechanic that owned it(he was 16 at the time), but didn't remember my car. Dealership was tiny back then so still working on some leads although a few kep people are no longer with us..