Hi folks, I have an older XP-100, with a barrel stamp of WKO and a s/n of 777x, I believe that to be August of 1963, am I correct? Would that be a first year of production for this model? 221 Fireball, of course.
If so, in NRA 98% condition, and venture a guess as to possible value?
Thanks!

OMCHamlin wrote:If so, in NRA 98% condition, and venture a guess as to possible value?

I would check GunBroker's completed sales and the Blue Book. Mostly value is determined by what its worth to the buyer or can be supported by similar items.