Two 4/14/70 Chrysler 15x7.0" "rallye wheels" w/E60-15 & F60-15 tires.

F60-15 (1972 tire) - 81.75" 82.53" circumference (= 26.02" 26.27" diameter) & 8.00" 8.25" wide tread
E60-15 (1974 tire) - 80.25" 82.00" circumference (= 25.54" 26.10" diameter) & 7.63" 7.50" wide tread

Both are used and worn, I wanted to put both tires at same pressure but no tire gauge to be found.
& only half the width difference (3/16") would be toward the fender.

dimensions in RED from KELSEY TIRE's web site