LeFusil, The Boss I mentioned has serial number 3857, which appears on the barrels, forend iron and the receiver. On the underside of the barrels on both tubes "CL" appears in front of the serial number. The top rib is marked "Boss & Co. 73 St. James's Street London". The Boss has a Perkes side snap action. Nothing to indicate it was ever rebarreled. According to Boss's records, the gun was one of a pair sold in 1886 to J.C. Ingram of Hyde Park, London.

Rich