Nice old 32 rim fire. Probably post war ,late 1860s. Good little niche gun.
Appears she made a little detour thru Bubbas Bumper shop.
Common occurrence back then. Nice find.
So far as I know the only S&W top break revolvers in rimfire were the Model 3' s in .44 Henry caliber. The original poster has properly identified it as a .32 single action CF, AKA model 1 1/2, made in 1878 or later..