Think Lane Brothers were only retailers who adapted and improved certain Gem patterns, mainly EG types but possibly others too?
Think Boker was a retailer as well?...
That doesn't surprise me Dave. Why build something when you can just stick your name on something someone else has done!
Vintage Airguns Gallery
..Above link posted with permission from Gareth W-B In British slang an anorak is a person who has a very strong interest in niche subjects.