This .41 rimfire caliber third model “Thuer” derringer has approximately 75% of its frame nickel finish. The 2.5″ barrel has a fair bore with visible rifling and firing erosion. The COLT-marked barrel is gray-brown. The left side of the frame is marked 41 CAL. The walnut grips are good with most of their varnish finish and high point wear. The action functions correctly.