I Don't Know - Revolver Thing ( lemmy.world )
With no markings or provenance at all, the origins of this revolver are a mystery. Its features all point to the 1880s or 1890s, and someone clearly spent a lot of time working on it – but we don’t know who. What makes it interesting is the very unusual operating mechanism. It is similar to a “zig-zag” system like the 1878 Mauser or Webley-Fosbery, but with angled splines on the cylinder instead of grooves.
https://lemmy.world/pictrs/image/0e7c3955-8d92-40d5-abed-10134a83516e.jpeg
https://lemmy.world/pictrs/image/f52c7973-0820-4fb5-8abb-d32e61a27df6.jpeg
The knob is a cocking system (phrasing)
https://lemmy.world/pictrs/image/987d280d-aabc-4cad-ab8a-4fcacb92fae9.jpeg
Ian's video: [7:31] https://youtu.be/NHggIGRdvCg?si=