Both failed to sell at auction.
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The 1855 “Root” pocket revolver was a reasonably successful design for the Colt company, although it was not the best mechanical design. The side hammer design used the cylinder axis to rotate and lock in place instead of using the rear face of the cylinder, which resulted in several small and delicate parts. In an effort to correct these deficiencies, Colt and his factory superintendent Elisha Root experimented with a “zig-zag” design as well, which would use and external cam running in grooves on the cylinder wall to rotate and lock it. Root received a patent (#13,999) for a system using a ring trigger and lug on the bottom of the frame, and these two prototype revolvers demonstrate a similar system with the lug on the top of the frame. This system was not ultimately adopted, and these remain just an interesting look into the experimental workings of the Colt company.
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Related:
Webley-Fosbery Self-Cocking Revolver: https://www.youtube.com/watch?v=QNfgoAJiFBQ
Colt Sidehammer “Root” Dragoon: https://www.youtube.com/watch?v=XaBLFL0VPfw
Mauser 1878 Zig-Zag Revolver: https://www.youtube.com/watch?v=UzSXvhGdfzo
Colt 1855 Revolving Shotgun: https://www.youtube.com/watch?v=cbKDkOAi6Mo
At Forgotten Weapons I think the most interesting guns out there are the most obscure ones. I try to search out experimental and prototype weapons and show you how they work, in addition to more conventional guns that you may not have heard of before. You’re much more likely to find a video on the Cei Rigotti or Webley-Fosbery here than an AR or Glock. So, do you want to learn about something new today? Then stick around!