Got a couple of pictures for help. 12 bore. Barrels are stamped JON.HY. Andrew & Co Toledo Steel Sheffield etc. SLE, DT with articulated front trigger. Heavily engraved R&S. Third bite with Purdy style lugs. Barrels and receiver have Belgian proof marks. There was and article written in 2009 with 11+ pages. Too much information to wade thru. Does anyone know who made the shotgun, when and were and any other correct information? I would really like to identify.