[Mike of the Mountain]

Originally Posted by Greg Baehman

Now for Mike and others playing along, the Special Bonus Question with a new and revised pic to help identify the maker. You will have to be a real bonafide aficionado of London-built hammerguns to get this right. This maker can be identified by his own unique style of "house engraving".

If the lever was on the left side I'd say it's a Hollis. I have a Hollis hammer gun with side lever like that.