Boss made 'best guns only'. The lower grade guns that they retailed were labeled 'Robertson'. Before (and after) taking charge at Boss, Robertson was himself an outworker. I've seen a subgauge Atkin SLE 20 that was actioned by Robertson, identical to a Boss of that period and first sold in 1897, after Ronbertson had been running Boss for 5 years (I think he took over in 1892?).

C Man
Life is short
Quit your job.
Turn off the TV.
Go outside and play.