Ages ago I got friendly with Bill Guthman who is/was widely known as an expert on Americana, particularly colonial weapons and more particularly, powder horns.
https://www.antiquesandthearts.com/n...-guthman-dies/
I bought a number of things from him, including the sword that is the subject of this post.
It is called a "Pilgrim Sword" because it's form is similar to those that are pretty conclusively linked to the first settlers of the Plymouth Colony.
https://www.pilgrimhall.org/ce_arms_armor.htm
The length is 38 3/4" overall with a blade of 33 3/4". The point is worn and there are the barest remnants of decoration on the ricosso.
The date? First half of the 17th Century.