Dear Scotty,
I know this isn't exactly a car question, but I found some vintage porcelain signs in the loft of an old garage and I was wondering what they may be worth. Three of them say "Goodyear Batteries" and one says "Goodyear Tires" They are about 2 feet wide by 6 feet long and one sided.
Look on Ebay for examples and dealers - condition and rarity are the key https://www.google.com/search?client=firefox-b-1-d&q=ebay+goodyear+signs