London 1853-1898
Unfortunately, a serial number ALONE does not impart any information. H&A made rifles, shotguns and handguns. The company closed in 1916.
I don't know of any published sn information on these shotguns.
On the internet. Just search up the name of this gun or any other one and usually you will get results.
I doubt if you will find any books on Crescent shotguns. As one person on another board explained "people with $50 guns don't buy $50 books to read about them". Joe Voresik is working on a new edition of "Shotgun Markings" which may include a lot more information than is currently available.
Yes
No
All Browning B-2000 shotguns were Belgium manufacture but assembled in Portugal.
give them away
Fully automatic weapons, short barreled rifles and shotguns (barrels under 16" for rifles and under 18" for shotguns), anything with a bore larger than .50" (with the exception of arms specifically granted an exemption), fixed magazine shotguns capable of holding more than 10 rounds, any handgun with a forward grip attached, any firearm disguised as some other object.
That patent date is found on shotguns manufactured by J. Stevens Arms & Tool Co.
Not without more information
Not published in any reference.