Originally Posted by jebstuart
Those appear to be the original "smooth" service stocks that the revolver left the factory with, but have been (rather well done) skip-line checkered. If you check the inside, right grip panel, the serial number might be there in hand written pencil. You will need good light to see it.
If this is a British Service Revolver (BSR), the serial number will be stamped inside of the right grip.
DSRichert, could you post the serial number found on the butt? If you prefer, you can X out the last two digits. Example: V123xx. Please include any letters found on the butt. Is there a hole drilled in the butt or evidence of a plugged hole?