Pistol made by Hopkins and Allen @ turn of the century or before.
Hopkins & Allen Company.
They made thousands of them.
£150
Try Cornell Publications.
about the the late 1800s
gun shows, custom ammo makers
Try Hopkins & Allen. Depending on condition, anywhere from $25-100.
Impossible to value with just the sn and no other descriptors
10-100 USD or more depending on specifics.
Hopkins and Allen pistol have no real collectors value like the Colt or Winchester. It can have some value to a Hopkins and Allen collector (there are a few) but that would depends on overall condition. Basically i would guess at $100 - $150 on a good condition piece......................
No definitive sn data published.