Blue Book of Gun Values might have something.
late 1800's to 1915 or so. Inexpensive,.
No way to answer without the sn.
Not enough information to even make a guess. You told us the maker- how about caliber, model, condition?
Please ask a question. JM Brownings first patented pistol is the FN model 1900 patented on April 20, 1897 a .32 caliber automatic pistol.
colt pistol
50-100 USD
50-500 USD depending on specifics
"caliper" is not a term associated with handguns. There is no way to answer the question with just the serial number.
This is a Blackpowder firearm, & there is no Ammo currently manufactured for it.
Gun shop, e-gunparts.com, want ads, gun show.
50-75
Impossible to answer without a detailed description of all markings
By 1917 Black and Decker patented the first pistol grip, trigger switch electric drill.