The title I got from a discussion with Philip
I took these off the swap...had never posted them here for show/ discussion.
I've never looked much into the history of the Da Dao (big knife)...but it's easy to see how they might be inspired from a sawed off version of a polearm similar to the Guan/kwan Dao or Pu Dao...
Weight = 2.4 lbs
Sword 1:
Blade: 19inches
Handle 15 1/2 inches
Sword 2:
Blade 19 1/2 inches
Handle: 15 inches
Blade Width = 3 inches at the widest
Blade Thickness at hilt 0.6mm, 0.7mm