I have a casting question.  On these axes, is there any sign of chaplets 
on the blade end or elsewhere.  Chaplets are little single or double 
headed nail like gizmos that are put into the sand first support the 
core, then to prevent core float after pouring.
That is assuming  this bad boy was sand cast of course.
You will see a little steel spot, maybe a 3/32" diameter spot, both on 
top and bottom of the casting.  It will probably be just a tiny rust 
spot but nice and round.

God bless