The Mathieson plane shown below
is similar to the one made by Stewart featured in “Mathieson
in March” Part 2. It is a double iron, sash moulding plane.
The twin iron, sash moulding plane, with early
mark stamped on the front.
The mark on this plane, referred to
as an “incuse” mark, is another of Mathieson’s early marks. It
dates from approximately the same period as the script mark
above, 1822 to 1850.
Glass Check Plane.
The plane above is a bit more
unusual, and a uniquely Scottish style. Called a Glass Check
plane, it is used to cut the flat rebates on both sides of a
window sash bar at the same time. The plane features a wooden
adjustable depth stop and fence attached to the sole with
screws, similar to the moving fillister plane.