Need help identifying English 410 Hammer Gun

[John Gardner]

Hi all, Picked this up several years ago and having trouble learning about the maker/brand.

It is a 410 steel barrel nitro proofed hammer gun marked C.S.S. ALd ('d' is subscript to the 'L') London. The barrels carry the BSA stacked rifles logo with BSA under the stack.

Barrels are 27" and LOP is 14" to checkered wooden butt. Gun seems to be in good original condition but may have been refinished - if so it was well done.

Outfit I bought it from said it came out of the Bob Timberlake collection - only Bob Timberlake I know of is from North Carolina and a major furniture designer (actually have a couple of his pcs and he's got a clothing line at BassPro. Don't know if this is the correct Bob Timberlake).

I have enclosed several pics and hoping someone like Mr. Campbell may be able to help identify if C.S.S ALd was a trading house or? Thanks in advance