This Winchester manufactured hammer with the stirrup and pin has the serrated line pattern on the spur and is for the pre-64 model 94 lever action carbine produced from circa 1948 through 1964. This hammer is in very good condition retaining most of its original blue finish with some areas turning gray from light wear. (file photos)

Note: Winchester pre-64 model 94 carbines with the following serial numbers have been observed with this part: 1538470, 1549788, 1580751, 1666470, 1906992, 2109713, 2110952 & 2595135