Elgin cutlass pistol - video

[Altair]

The Elgin cutlass pistol is single shot percussion pistol with a Bowie knife blade attached to the bottom of the barrel. The pistols varied in caliber, barrel type, and blade length. The larger U.S. Navy cutlass pistols were .54-caliber, with 5" smoothbore octagonal barrels, and 11" blades.

More:

Elgin Patent Cutlass Pistol | National Museum of American History
https://www.historynet.com/pistol-kn...ife-pistol.htm

Previously:

Sedgley OSS .38 glove gun - videos
Revolver/brass knuckles/knife in one - GIF
https://www.homemadetools.net/forum/...877#post105666
Blake rifle with 7-round rotary magazine
Guycot 40-shot chain pistol