I still have these plates ...
picture from July 1974 at a 50's party at General Motors Institute
my neighbor worked at the Secretary of State's office and pulled the plates out of sequence (before the real personalized plates) for me knowing I had a 302 in my 56
I have moved the Beach City Chevrolet frames to a deserving vehicle some time ago (from this site)
I could probably be talked out of the plates :-)