Decoding a Firestone Wide Oval

[MosportGreen66]

Long ago someone posted instructions on how to decode the date info on Firestone tires.

Any help would be fantastic!

Dan

[smoke' em II]

I have been told that pre 1971 could not be decoded? <<GRAEMLIN_URL>>/dunno.gif

http://classicoldsmobile.com/forums/442/27964-70-442-w30s-goodyear-firestone-tires-2.html

[firstgenaddict]

My brother works for Firestone, he took a look at some old pre-DOT Tire Markings the other day and said it looked like plant codes and or mold revision numbers. He said he would see if he could get an answer from &quot;The Gumdippers&quot; (retired plant engineers)