Roger, I have a few LC Smith’s that are entered in the ledgers differently than they are engraved and grade stamped, and sn37799 is also an example of this phenomena. Serial number 37799 was recorded in the ledgers as a Grade 1, however it is stamped with a “3” on the loop rib and on the frame under the left lock plate, and has engraving similar to a grade 3, albeit with the unique Ruffed Grouse engraved on the right lock plate (which we suspect was a special order, although the records do not state that it was a special order gun).
When you receive sn39977, please check on the frame under the left lock plate for a grade stamping.
Here is a photo of what sn37799 looks like.
Regarding the finish of sn39977, I believe that the barrel finish and the case colors on the frame are original, and that the buttstock has been refinished (there is evidence of old finish under the new finish).
Still a beautiful gun!
Stephen