Very rare, Colts Pall Mall Agency cigar-style, papier mache casing, for a British proofed Colt Third Model “Thuer” derringer ,with sloping hammer and wide grip. The push-button, hinged rectangular case, with rounded edges is covered in brown / burgundy leather with a small vacant rectangular silver-plated, brass escutcheon. The base of the interior is lined in dark blue beige, with the interior of the lid in deep purple satin. It has French style casing, which follows the contours of the derringer, with an area in the top left corner to keep several .41 rimfire cartridges. There is the Colt logo, reading “COLT’S FIRE ARMS Co. LONDON S.W.” in gilt within an oval, with “14 Pall Mall” in a straight line, in the centre. The outside of the case is in excellent condition, but the interior lining has deteriorated, due to over exposure to the light.