Unless a commemorative gun has never been fired, has no evidence of ever having the action worked, and has all the paperwork and packing materials that came with it, it does not have collector value, and is "just a gun". A shooter. And, based on most commemoratives, a really ugly one, with multi-colored finishes (gold plated loading gate and forearm cap), engraving, medallions stuck in the stock, etc.
Since it sounds, from your description, that it falls solidly into the "shooter" category, and since they ain't by no means rare (they made over 122 thousand of 'em), I figger three, maybe
four hundred, if it shoots good.
Meddle not in the affairs of dragons, for thou art crunchy, and taste good with catsup - George of Lod, Year of Our Lord 297
I always take precautions.
Beware the Evil Bullet Fairies.