I see Researcher responded with the absence of this gun being in the ledger. Not unusual as there are many guns missing from the ledger including whole blocks of guns. I noticed that this gun is now posted on GI with a lot of pics. A very nice, heavily engraved gun that is well preserved. If I had to guess I would say it is “Special” engraving that was used to introduce these guns to the market/trade. SN 7 is a 16 gauge drillings with very similar engraving on it and there have been a few others that have similar engraving that have surfaced from time to time.
