I know someone with eight webleys, they are a collection. Go visit some places of herritage, museums and the like, they may have hundreds of the same gun.
What you have to realise is that the people who have them often built up an encylopedic knowledge of them, you may have one with a serial number x but also a later one just because it shows a difference in the machining marks or change of proof house or even because they dont show a difference. I keep trying to emphasise they are not held for the purpose of shooting thats just a sub topic of their appreciation and study.
“If a cricketer, for instance, suddenly decided to go into a school and batter a lot of people to death with a cricket bat, which he could do very easily, I mean, are you going to ban cricket bats?” :- Prince Philip said after Dunblane