These tires are clearly not meant to be driven on. The value is just their existence and some people, regardless if it's a GN or other classic car, want original tires for time-capsule cars. If they are worth nothing I'll toss them but I thought someone may want them.
Ozone is a tire killer....
Had a pair of NEW / unmounted Goodyear ft runners for the Buick.
They had been stored above the shop, on the attic floor for quite some time.
When I dropped them to the shop floor both of them had the sidewall actually crack open.
Sounded like walking on chips!
They'll be fine if you put nitrogen in at $100 a pop per tire at the local stealership.
I have a new, never been used goodyear 10-15 AT/Tracker on the never used factory rim
that was the spare in my 77 blazer. If new 215-65-15 tires are $500 a piece this has got to be
worth half a million! PM me, I'll cover the freight anywhere worldwide!