OK made black powder single-shot derringer

This is a .32 rimfire black powder single-shot derringer by “OK”. This pistol is identical to the Marlin single shot, and could have been made by them, but lacks any Marlin stamps. It has a brass frame, brass front sight blade, wood grips, and a steel barrel in the white.
The trigger is crisp, and the hammer has a working first-cock position for opening the action. An interesting little antique.

This is an antique and does not require licence. This is restricted to adults 21 and older.