What’s the one word that matters most to gun collectors? It’s “original”, and the more original an old firearm is, the more valuable it will be.

Boss & Co. 20 gauge Sidelock SxS Shotgun, #7201, 28″ bbls, made around 1924. Is this the holy grail of grouse guns? Perhaps. But even if you disagree, its price–$67,000–will make you say “holy sh!t”. Why is it so much?

Condition, first. This gun looks well cared for, lightly used, and totally unmessed with. It has a lot of its original blueing and color-case hardening are still present. There’s even original finish on the lock pins The finish on the wood looks original, too, and no one has recut the checkering (thank god!).

After condition, this gun’s vintage adds to its value. It was made around 1924. Boss shotguns from the 1920’s and 1930’s tend to be this maker’s best examples. And the best guns always bring the biggest money.

This gun also has some special features. The length of its barrels (28″), the length of its stock (14″), and an original Boss single-trigger. Taken together, they make the gun appealing to modern shooters.

Even though it’s expensive, it’s cheap compared to what brand new 20g Boss SxSs cost now. One of those will run you around $130,000+.