I am pretty techno challenged myself so I feel your pain, but am teaching myself as I go along, you can do it, just bang away on the old key board, ask questions and where better to learn about 'puters than the net? It is full of geeks who love to show how much smarter than us they are , do a search read and learn, that's what I am doing slowly but surely.
As to your question I did a quick search and I can't tell what shape it is in so it is hard to judge but I found an auction or 2 and have put some links up for you to check out. Are you sure it is a shotgun? Because I see they also made a double rifle, any way here is what I found hope it helps.
http://www.auctionarms.com/search/print ... um=9161476http://www.pugsguns.com/findItem.action?id=1615Hollis Bentley & Playfair, LONDON, SLE, 2 1/2" 27" choked IC/Mod. 14 7/8" moderately figured wood to 1/2" ebonite butt plate. Bar action with beaded fences has gone grey and features fine scroll and floral engraving. 6lbs 6oz. A fine handling sidelock. Includes a leather and canvas case.
Sold
Picture
$6800
5 Image(s) Bentley & Playfair 12 Gauge Sidelock Ejector 965896414
B Misc Shotguns
Bentley & Playfair 12 Gauge Sidelock Ejector. the action on this gun is tight and the Ejectors are well timed. The trigger pulls are crisp and the action is silver with 80% coverag... (read more)
Seller: Willoughby McCabe Co $4,200.00
As you can see pics would really help but if you have a Bently & Playfair it could be worth a lot.