Gas cap

Here you go: the one on the left is an original and the one on the right is one made by one of our members @damraider IIRC.
FWIW the ones with the S-shaped handle will work but are not “correct” as they are aftermarket.

View attachment 1715277499
Depending on the tabs on the back I might have several. Is it the same as a 67-70? It looks to be the same. I have one of the S-style it came here on a 67.. It could have been aftermarket but it did fit the 67