The cataloged Deluxe is fully engraved but there was an early DeLuxe without engraving and it had a 3" long horn forend cap vs the regular 2" cap and had all the other Deluxe features. Then there was the WW2 produced Deluxe with the Deluxe marking on the barrel that had no engraving nor the other prewar Deluxe features. If a Sedgley only has the floor plate engraved I doubt that it was done by Sedgley.