My friend has a double-barreled shotgun which belonged to his father-in-law (who would be 118 yrs old if he were still alive). This gun looks to be a 12 gauge, damascas 29 7/8" barrels, exposed hammers, dble triggers, etchings all over the barrels, receiver and trigger guard, checkered forestock and pistol grip. Markings on trigger guard area where it screws into pistol grip: 17,9. Markings on top of barrel: E. M. Reilly & Co New Oxford Street London & Rue Scribe Paris. I don't know the correct way to grade old firearms but I would say this gun is in very good condition. Any help in identifying it's age, value and/or info on the manufacturer will be appreciated.