This is neat 22 caliber 7 shot spur trigger revolver made by Manhattan Arms Co. and is marked American Tool Co. This one is very nice with well over 80% original finish. The serial numbers are matching #23364. The mechanical function is very good crisp and tight. The bore is bright and shiny with decent rifling but does have some fine corrosion. The barrel to frame fit is nice and snug. This has a rolled hold up scene on the cylinder.