Dear folks i have bought a GE Lewis hammergun SN. 2737. I have emailed Leeds Royal Armouries but got a reply that they dont have the records for this Serial no. The gun has 30 inch Damascus Barrels. Nitro proofed at 719 now measures .724 left and .725 right respectively. Much of the original finish is on the action. Rib is marked " GE Lewis Maker. Duke St. Manchester Square London. No. 2737. Any info about this maker and how can i access to info about this serial number other than the Royal Armouries is appreciated.

Best regards

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