I'm turning to the experts here to see if you can give me a little info on my most recent purchase. I believe it is a transitional gun with SN: 600XX. I do not see a prefix on any of the surfaces. I don't believe the grips are original, as they should be diamond magna's. Correct? Also the Barrel and rear of the trigger have the patent date, but there is not date roll-marked onto the hump of the hammer. Should there be? Inside the Ejector Shroud there is a "B" to the left and an "S" to the right of the serial number. This isn't found on the other surfaces leading me to believe this is a transitional model. Any idea on year of manufacture or value? Thanks. Here are the pictures.




