The nicest original used A body spare tire you will find!

It is SBP. Never been repainted. Wheel date codes jan 8 71.

Many FABO members have confirmed in PMs that their original 68-72 cars had Goodyear Power Cushions. I myself had a 68 with a 13 inch Power Cushion.

Again, I did find this chart on the net for goodyear tires:
http://www.superbirdclub.com/GoodyearDatecodes.html

Also, here's a duplicate link to the Ebay auction with more pics (25) than I could put on this site:
http://www.ebay.com/itm/33126337906...em=&sspagename=ADME:L:LCA:MOTORS:1123&vxp=mtr