Webley is a fine old name in English gunmaking.
In those days it was common to use a misspelled famous brand name to sell cheaper goods. Perhaps "Charles Webly" was meant to sound something like either "Webley" or "Charles Daly" to the unsophisticated buyer.
What are the proof marks on the gun? Any gun made in an industrialized country (except the USA) will have standard government applied proof marks that can be used to determine its origin.