>>859416
The BFGoodrich Radial T/A first came out in 1976. It had "50" after the T/A. The tyres in the picture are a modern (late 2000's) re-release.
Rydell High School is the fictional school from Grease which wasn't released until 1978.
The girls don't look right for the period physically.
Then there's the high resolution photograph with a grainy filter applied.