A very rare Rear Sight ORIGINAL Winchester No 34E Expresss for rifles. This rear sight has one leaf that folds flat and can be sighted from either the upright or flat position.. This sight was special order on a number of Winchester rifle models prior to 1919 including the 1866, 1873, 1876, 1886, 90, 92, 94, 95 and 1903, 04, 05, 07 and 1910.
