I forged welded a piece of 150 yr old wrought iron from a bridge spike and some 1095 high carbon steel then forged out the shape. It is 4 5/8" long and 1 1/8" at the widest and very sharp.
This one I forged from W1 and gave it a clay coat and a water quench for what I hope will be a nice hamon. The edge is 12" long and 1 1/2" at the widest and 1/4" thick at the thickest.
I forged this one from 1065 medium carbon steel. The edge is 7" long with a 4 1/2" stick tang and is 1/4" at the thickest part.It has been clay coated and quenched in water to give it a true hamon that I think resembles a serpent. It is flat ground and has a very sharp edge