You need to find some books by Joe Vorisek. They are hard to find, but "Shotgun Markings" is probably the one you want to identify the manufacturers of old trade-name guns.
They made lefever shot guns starting around 1878 and ending in 1921.
Blue Book of Gun Values might have an answer.
They don't. They are shot by PEOPLE that are using guns.
The Book of Colt Firearms. History of Smith and Wesson. Standard catalog of Smith and Wesson. Ruger, the man and his guns.
Possible sources include the internet, library, gun shops, gun shows, book stores
Look in your library for a copy of The Blue Book of Gun Values. You'll find information on hundreds of single shot guns.
The Book of Colt Firearms has what you are looking for.
Rifles, hand guns, shot guns, sub machine guns.
Your question is a oxymoron. Pneumatic BB guns are single shot. Machine guns are Multi shot. There are several C02 driven BB machine guns
bleeding
They are OK
that he is a great shot and he shot a lot of guns when he was young.