For anyone interested, I recently visited Redding Auction and they will have a D.M. Lefever up for auction soon. It was a low serial number 12-bore and I don't recall if barrels were steel or Damascus, but it was an unrestored original; and as I recall was a 7D. This gun also had the screw in the forearm to disable the auto-ejectors; the only example of the few D.M. Lefevers I've seen with that feature. There was also a side-cocker that'd be in the same auction.