very nice early RST -4, you should clean off that congealed oil on the bolt, acetone on a Q-tip , or better yet just simply soak the whole gun , remover the grips, out in a pan of kerosene over night, brush it off, blow it off with an air hose... swab the bore......I've seen some early guns that folks NEVER even took them apart, just soak and blow it off , kerosene is an oil base so it actually lubes the inner workings....again NICE# gun. My wife has one in that range about 60 or 80 numbers higher........don;t break the firing pin, they are EACH hand fitted, and the factory will "maybe"?? (Ha Ha) replace the whole bolt,,,,so DO NOT..........
