No way to answer without the sn.
Gun shop, e-gunparts.com, want ads, gun show.
This is a Blackpowder firearm, & there is no Ammo currently manufactured for it.
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 & Wadsworth
U.S. Patent Office
"caliper" is not a term associated with handguns. There is no way to answer the question with just the serial number.
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.
50-500 USD depending on specifics
Forehand and Wadsworth (Forehand Arms) was in business from 1871 to 1902. Unfortunately, there are no serial number records for this company that has been closed for 116 years.
The Forehand and Wadsworth revolver, patented on June 2, 1881, is a double-action revolver known for its reliable design and solid construction. Manufactured by the Forehand & Wadsworth Company in Worcester, Massachusetts, it features a break-top mechanism that allows for easy loading and unloading of cartridges. These revolvers were popular during the late 19th century and are often sought after by collectors today for their historical significance and craftsmanship.
The value of a Forehand Wadsworth 38 can vary significantly based on its condition, rarity, and market demand. Generally, it can range from a few hundred to several thousand dollars. For a precise valuation, it's best to consult recent sales data or an expert in vintage firearms.
50-300 or so