Not for the faint-of-heart, pocketbook-wise. Rock Island Fall Regional Auction.
Here's two of the creme-de-la-creme.
A pair of Colt, factory engraved Single Action Army. Think around $150,000 ! ! !
Pistols not your thing? How about a John Ulrich Signed Factory Engraved and Big Game Gold Inlaid Winchester Model 1910 in 401SL?
BONUS: If you have $200,000+ to spare then why not go full automatic with a Krieghoff Second Model FG-42 Fallschirmjaegergewehr Paratrooper Rifle?