Third choice IMHO.
These are pretty much a 69 tire [Corvette F70X15] being a notable exception. Firestones were pretty much 69 also in pictured style.
The "speedway wide tread" came out in 67 .
The 67 version differs in the "NF Nylon" instead of "load range B".
These repops are 68- up type.
The white letter type is 69.
We have the redline version on a 68 and the white letter version on a 69. The redlines have over 4,000 miles and still look good.
Pic 1 is a 69 type Firestone spare tire from her car.
Pic 2 is a 69 type Goodyear we put on her car
Pic 3 is an original ad for new cars
Pic 4 is the redline type on one of her 68"s
Your call of course
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