Check out my other items. If you like OLD ADVERTISING. PLEASE WAIT TO PAY UNTIL ALL THE AUCTIONS ARE OVER AND I WILL SEND YOU A COMBINED INVOICE. This old pocketknife shaped item is made of metal and dates from the 1920s–30s era. It measures 3 inches long. Not 100% mint (nothing is to me) but nice as you can see and looks very cool when displayed…. Looks very cool when displayed. I have collected for 30 years and I’ve never seen this item before. You would be hard pressed to ever find another one. It’s an old original with no touch ups or repairs and it’s GUARANTEED authentic. I DO NOT sell reproductions. I SELL OLD ADVERTISING WHICH MOST ITEMS HAVE BEEN USED AND ARE IN USED CONDITION. The item “RARE 1930s Vintage CHEVROLET THE KEY TO PERFORMANCE Old Spark Plug Key SIGN” is in sale since Thursday, October 06, 2016. This item is in the category “Collectibles\Advertising\Automobiles\American\Chevrolet”. The seller is “nekbe” and is located in Kilbourne, Illinois. This item can be shipped to United States.