First, I'd suggest using a magnifying glass of some type to make sure you know what letters yours has impressed in the barrel.

Thanks again, Wild Bill 22Wulfman , Thank you very much for your time replying to my post .

Thanks again, Wild Bill 22To the best of my knowledge, they used all upper case letters.

However, if you do some searching on the gun auction sites, you may find some "ballpark" figures of what they're asking for them or what they've sold for.

Whatever you paid for this one is it's current value. Den Wulfman , Thank you very much for your time replying to my post .

Depending on barrel length or wood style, those may or may not work.

Estimated "values" are not given on the forum for obvious reasons.With the hundreds of different models produced over the past 200 years, it can sometimes be difficult to determine the age of your firearm.Since serial numbers were not required until 1968, your firearm may not have a serial number.With the longer barrel and "A" or "BDL" grade, "C P" (Apr 1967) would work.If it's a "C D", that would indicate either an Apr 1957 or Apr 1983 date.I do have the smooth wood or A model with 23 1/2 inch barrel .