ORIGINAL: Pawildman

Almost any gun will go up in value over a period of time. The key is knowing when to buy and what. Your Nylon 66 was made for just about 30 yrs., starting in 1959. 1,050,336 were manufacured. My modern Gun Values book, 14th edition, lists it at $275 in excellent condition. I feel sure that is much more than was paid for the gun when bought new. Kept in the condition you described it to be, it should do nothing but increase. There are probably some serious 66 collectors out there that would love to have it. Does that help?