Colt/Ehlers Pocket Model Paterson Revolver No. 1 with factory case and accessories. Also known as the Fourth Model Ehlers revolver, this revolver was manufactured c. 1842 by John Ehlers using semi-finished Colt Paterson No. 1 revolvers following the bankruptcy of Colt's Patent Arms Manufacturing Company. Total production is estimated at about 500 revolvers. The Fourth Model Ehlers revolvers featured an attached loading lever, capping cut-out in the recoil shield, round back cylinder and modified barrel legend. The five shot cylinder is roll-engraved with the centaur scene with the "COLT" four horse-head trademark. The top barrel flat is roll-stamped: "-PATENT ARMS PATERSON NEW JERSEY" and lacks the "M'g Co." portion of the marking found on Colt Paterson firearms. The serial number, "170," is stamped: (1) on the inside of the barrel lug, (2) bottom of the barrel wedge, (3) loading lever, (4) rear face of the cylinder between the chambers and (5) inside of the frame. All of the visible serial numbers match. The barrel, frame, cylinder and back strap have a high polish blue finish. The hammer and loading lever are color casehardened, and the select grade walnut grips have a high polish piano finish. The flat top mahogany case is lined with burgundy velvet and has slightly scalloped compartments for the revolver and accessories which consist of a bullet mold, powder flask, combination tool and nipple pick. This revolver was formerly part of the William M. Locke collection and is illustrated and described on pages 104-105 of "Magnificent Colts, Volume I" by Robert M. Lee and R.L. Wilson and is also featured in "Colt Pistols" by Wilson and "The William M. Locke Collection" by Sellers. Includes a plexi-glass enclosed reprint of an advertisement for this model by John Ehlers.