Perhaps Thomas Forsyth was a retailer who sourced guns "from the trade" in Birmingham, yet had his business in London. That would explain the London address on a gun with Birmingham proofs.

It still leaves the repro trade label for "Forsyth & Co" with a London address question open. It looks like "Alex Forsyth" evolved into "Forsyth & Co".

Regards
Ken

Last edited by Ken61; 03/25/15 12:00 AM.
I prefer wood to plastic, leather to nylon, waxed cotton to Gore-Tex, and split bamboo to graphite.