American Spontoon

 

This American Spontoon is made of forged steel and wood.  Overall it measures around 5′-2.5″, the head along measuring around 10″.  The spontoon was carried by cavalry units and used as a weapon when attacking.  For source and more details, click here.

 

Image from: http://www.cr.nps.gov/museum/exhibits/revwar/image_gal/morrimg/spontoonmorr.html