Here's a place where you might find out more about your revolver.
A non-firing replica of a Webley "British Bulldog" revolver.The British Bulldog series of revolvers were an enormously successful solid-frame design featuring a 2.5 inch barrel and chambered in a variety of heavy-duty calibres, including .442 Webley and .450 Adams. They were designed to be carried in a coat pocket or kept on a night-stand, and great numbers have survived to the present day in good condition, having seen little actual use. Numerous copies of this design were made in France and Belgium (primarily the latter) during the late 19th and early 20th centuries, and they remained reasonably popular until World War II. They are now generally sought after as collector's pieces, especially as ammunition for them is (for the most part) no longer commercially available