This is an extraordinary example of a late production Fourth Model 1866 carbine that was manufactured by the Winchester Repeating Arms Co. in 1890. The carbine has the distinctive brass receiver with blue 20-inch barrel, 13-shot magazine and barrel bands. The hammer, lever, trigger and carbine style iron buttplate are color casehardened. The loading gate and bolt are niter blue. The stock and forearm are oil finished straight grain American walnut. The carbine has the Fourth Model features which include: receiver profile with less drop ahead of the hammer than earlier models, iron buttplate with sliding brass trapdoor and serial number stamped on the lower tang between the lever latch and tang screw. A staple mounted saddle ring is located on the left side of the receiver. The upper tang is factory drilled and tapped for a rear sight. The barrel has a block mounted steel front sight located behind the upper barrel band and late sporting style folding leaf rear sight marked "1873" and graduated to 900 yards. The magazine has the late style screw fastened cap. The hammer has forged bordered knurling on the spur. The butt trap contains a four piece jointed steel cleaning rod with brass tip. The top of the barrel is roll stamped with the second style legend "WINCHESTER'S-REPEATING-ARMS. NEW HAVEN. CT./KING'S-IMPROVEMENT-PATENTED-MARCH 29. 1866. OCTOBER 16. 1860." ahead of the rear sight and the late "44 B" caliber marking between the rear sight and the receiver. "44 CAL" is stamped in script letters on the bottom of the cartridge elevator. The serial number "168988" is stamped in script numerals on the lower receiver tang.

Excellent plus. The carbine retains 98% plus of the original blue finish and displays only very minimal storage marks. The brass receiver has an outstanding attractive mustard yellow appearance with visible factory polish marks and perfect side plate joints. The barrel and magazine have 98% or more of the original blue finish; wear is limited to some screwdriver marks on the magazine plug and some very minor finish loss on the sides of the barrel bands. Nearly all the niter blue finish is present on the loading gate and the bolt retains most of the blue finish. The hammer, lever and trigger retain virtually all of the muted case colors. The only finish wear is located on the heel and toe of the buttplate; the balance of the buttplate retains 90% or more of the casehardened finish. The stock and forearm are in near new condition and show almost no storage or handling marks. The barrel and receiver markings are perfect. This is a stunning, nearly new example of a late production Fourth Model Winchester 1866 carbine.