My apologizes for not following up on a posting I made in 2010 and adding some information that may add to your chronological listings.Said posting can be found at this address
http://www.doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=191402&page=all
xxxxx - (1880’s?)
Name: Not mentioned.
Description: E.M.Reilly bar-in wood 12 bore with Whitworth steel barrels circa 1885 with 2 3/4" chambers,30" mod. and full and nitro proofed. It has a large capital "B" in 24 carat gold where the oval
Comment: This is Terry Lubinski’s gun…He could add more info including SN, and address on rib, etc.
The gun is serial # 303xx and has only the 277 Oxford St. address not the Rue Scribe.What may be helpful is that the original black powder proofs include Not For Ball which should place the gun at 1887 or earlier.The gun is a personal favorite and still performs regular service at sporting clays


Better to keep your mouth shut and be thought stupid,than open it and confirm.