There were several guns known as British Bulldogs. Most were solid frame revolvers, whose parts are held in the frame by pins/ screws, It is not possible to give specific instructions without knowing the exact make/ model, Take the gun to a gunsmith. Yours will not be the first "gun in a bag" he has seen- but the cost may exceed the worth of the gun.
The gun was an ivory-handled .44 Webley British Bulldog revolver.
Try e-gunparts.com
The Iver Johnson american bulldog revolver was made in 3 different models.The first model was made between 1882-1884,the second model american bulldog was made from 1885-1899.and the american british bulldog was made between 1882-1887.
The value of an American Bulldog Revolver can differ greatly on variables. The older it is, the more valuable it will be. It also depends on the demand in the market.
No sn data I can find. You will have to check on line auctions for prices.
late 1800's to ealry 1900's
British bulldog has bench 535lbs.
No published data.
The French Bulldog came from the Molossians, which were a tribe in Ancient Greece. They are related to the British Bulldog and American Bulldog.
It was a Webley .442 Bulldog revolver.
The British Bulldog can live up to 7-9 years in human years.
Anywhere from $10-$200, depending on condition, model, etc.