gas caps for sale,all female threads

one bakelite cap, 16 threads per inch,38 dollars, two with the finger grips,one chrome plated br*** and one stainless[both are 18 TPI],or maybe aluminum [kinda heavy for aluminum??]pewter??non magnetic, but i dont believe its plated, i scratched the inside and it doesnt look like br***,.35 dollars for it.the br*** plated chrome one is 25 dollars,the one that says fuel on,11 TPI, it is 21 dollars, and the locking one[no key but works without it now]26 dollars.its 14 TPI. all prices are plus shipping,each one should fit in a small flat rate box for 7 dollars.