Sheath cinches on with a leather strip.
Now sold through Sawyer Made.
These were designed with George Sawyer of Sawyer Made, who uses them for carving the seats of his Windsor chairs. It is designed to work like an old inshave he got from his father.
Comes with hardwood handles and rawhide sheath. They measure 6" in a straight line from tang to tang.
See a review from Lost Art Press.
Here is George using the inshave, showing how the curves work to shape and smooth a stool seat.
In the background you hear some of his students, scraping seats and turning legs.