Flip Top Gas Cap & Adapter

I have a flip top gas cap for sale along with an adapter. The cap is in presentable, "driver" condition. I do not know what car the gas cap is from. It was on my '65 Barracuda for the last year or so but now I am going for a different look. PM with any questions. I would like $70 plus shipping for both & would prefer to sell them together. I am located in Huntersville, NC.