- Official Post
Here is an Ebay auction for an NOS 1966 prototype flip open gas cap by Ebay member "twjh-esales" with a Buy-It-Now of $2,750.00:
Up for sale is one RARE NOS pop open gas cap for a 1966 Mustang GT. This cap will also fit a 1965. It is in absolute mint condition, there is NO pitting to the chrome. In my 40+ years of collecting Mustang cars and parts, I have only seen two of these, and the other one was not NOS and was pitted.
RARE NOS PROTOTYPE GT FLIP OPEN GAS CAP 1966 FORD MUSTANG | eBay
-Fred-