The Queens Prize money of £250 from GE Fultons win in 1888 must of put him on the map and made him a minor celebrity of the period.
Fultons business was at Staines for a while and the building they now occupy was the NRA office although I'n not sure of the dates the NRA moved out and GE Fulton moved in.
Yes, I think it's an educated guess to suggest the blackboard refers to, "Fulton Regulated" rifles.
John Light (junior) the maker of Brindles sights died about 7 years ago at the age of 89, he apprenticed on airframes at Brooklands and went to work for the family firm converting P14 sights to fit No.4's. He told me he felt he was worth more than Arthur or Robin were paying him at the time so he went solo and founded Brindles. He also did a stint as the NRA armourer at one point.
Very much a one man band and I have to wonder what he might have achieved with more help for his business, he was a delight to know!