I am trying to identify this Nickel plated S & W Snubnose. I am pretty sure it is a 38 special .On the yoke when the cylinder is open I can see the numbers 52 51 B. With the cylinder open on the face of the cylinder there is what appears to be the letter N by one round opening then over the next round opening the numbers 535066, On the butt of the gun the same numbers 535066