Dovetailed Steel Construction with Rosewood Infill & Later Mahogany Wedge.

5” x 3/8” Dovetailed Rebate plane.
About small enough to be called a Thumb Plane.

A nice little dovetailed steel, Rosewood infilled plane.
These were used to clean up rebates
and housing joints.

This one probably designed for narrow housing joints as
it has a skewed
cutter for cross grain work. The mouth has probably been widened.

Here, you can get an idea of how narrow it is. Norris are known to have
made a plane
of these dimensions but I'd be reluctant to say that this one is by Norris.
It is however,
a very handy little tool.