picked up this hammer the other day. the head shape to me looked early, but I am no expert.
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in any case it is pretty cool. the butt plate says:
estwing mfg co
rockford
ill.
pat 3 30
others
pend
that head shape packs in some mass. the face os flat, not domed. the butt plate is a little loose, so the leather rings can move a bit. I can tighten that up.
just thought I'd share
Bridger