I am so old I remember when any pistol or long gun which predated 1968 carried a higher off the books value. Like a 1911 .45 which might be worth $200 would bring $250 if the buyer knew it was not in the system and no serial number could be traced back to the owner. Those days lasted about a decade but was real while it lasted. I just wished I could have afforded to buy more of them back then. I wasted my money on Fox small bores for a few hundred dollars. My favorite were the 16's in mint condition for 250-350 because everyone knew ammo was not going to be made for them soon.