This one is a Type 11, made between 1910 – 1918
The No.3 is 8" long and has a 1 ¾" cutter.
This type still has the "Low Knob". The low knob was last provided in 1918
on the type 11.
Type 12, (1919) saw the introduction of the high knob.
This seems to have been an exceptionally productive period for Stanley
as
type 11 planes are fairly common in most sizes. I also have a type 11 No.4
& a No.5.
The 3 patent dates of the type 11, Mar-25-02, Aug-19-02 & Apr-19-10.
The
brass adjusting nut is still only 1 ” diameter, on type 12 it changes to
1 ¼” dia.
The Stanley V Logo is on the cutter. It was first introduced on irons in
1910.
It carries the words, STANLEY, NEW BRITAIN, CONN., USA.
You
will see that the hole in the lever cap is an upside down kehole shape
(left).
Also,
there is no familiar Stanley logo on it like the cap on the right here.
The
logo didn't make an appearance until 1925. In 1929, the
"keyhole" shaped notch became Kidney shaped (right), just like
the cap irons
on today's
Stanley Bailey planes.