Can't be answered without a DETAILED description of ALL markings, barrel length, sights, stock material, box, papers, accessories, history, finish, overall condition, etc..
I think you are asking about a forehand wadsworth British Bulldog not a BB gun. As far as I know, I do not know of any Forehand Wadsworth BB guns. Please rephrase your question and re-post it.
Forehand Arms was the successor company to Forehand & Wadsworth. They were in operation from 1890 to 1902. Not aware of any serial number database for them. Sorry.
50-300 or so
gun shop, gun show, pawn shop, for sale ad
Made late 1800s to early 1900s. Inexpensive when made.
late 1800's to ealry 1900's
You have not yet asked a question, despite the question mark. The successor to the Forehand & Wadsworth Company, Forehand firearms were made from 1890 to 1902. Values are not high, but would depend on exact model and condition. Please note this is NOT a .38 Special, but a caliber .38 S&W.
Anywhere from $10-$200, depending on condition, model, etc.
Can you email me with the complete markings on the gun, and possibly digital photos? The patent dates are in the same general range as Forehand & Wadsworth, but not exactly. sales@countrygunsmith.net
Impossible to do without clear, closeup photos. Seek the services of a professional appraiser.
Forehand & Wadsworth changed their name to Forehand Arms Co. and was eventually taken over by Hopkins & Allen. Unfortunately without the serial number it is hard to narrow down an exact age. I can tell you it was produced between 1887 and 1915.
A good candidate may be the Starr Model 1858. This was a ball and cap revolver. With cartridge firearms, Forehand & Wadsworth made a .32 revolver inn what we would today recognize as a "double action: revolver. However, there were earlier "double action only" pepper box pistols.