ok so i was pumped to get my grandfathers shotgun last year.

an almost mint 16 gauge remington wingmaster. from what im told he recieved it some 30 years ago and never even shot it!!! so i belive its to be one of the first produced. i used it last year on small game, turkey, and some clay. worked perfectly. from what i hear they are a very saught after gun..."the gun that carries like a 20 and hits like a 12" and "a favorite of upland hunters." so im wondering what it could be worth? should i put it on the rack and retire it from its hunting days?