This is a historically significant
Jackson 10" back saw made by Disston. It's from the mid
to later part of the 1870 period. The dating is based on
screws used to fasten the handle. These are small thread
diameter, Disston centennial screws.
They were patented by Henry Disston and
featured domed head and a capped nut that covered the
end of the male-end of the screw.
The old split or spanner-style nuts, which had
been previously used, were filed flush with the surface and
required a special screw driver to tighten the nut.
The newer style only required a regular
screwdriver and was something Disston didn't miss mentioning in
the marketing literature of this very competitive era.
The open beech handle is in fine shape with most of the original
finish intact and is affixed solidly to the blade and back.
brass hardware retains it's original aged patina. I've only
cleaned and lightly waxed everything.