lol, Found no reason for this type point, so I did some snoopin around.
Just found this un -edited (spell check ) fun.
I was thinking they could be some heavily re sharpened projectiles. Not now?
The article is really good,
Mustache Simpson
Written by Lloyd Schroder
Tuesday, 24 January 2012 18:30
The blade narrows at the half thing area
The basal edges are smooth from the half thing area and from a re-curved basal adage.
No matter, I think I am trying to preserve to much blade?
Zuma