L: 48.2cm W: 15.4cm H: 5.4cm
a- L: 48.2cm W: 2.1cm H: 2.1cm
b- L: 15.4cm W: 2.3cm H: 5.4cm
c- L: 9.5cm W: 1.5cm H: 0.8cm
A wooden marking gauge consisting of 3 parts.
a- The stem is made of a dark brown hardwood. It is a long strip of wood with a semi-ellipse cross section. On one end, there is a short spur extending down about 2mm.
b- The fence is made of the same hardwood as the stem. It has a bell-shaped top and a flat bottom. There is a semi-ellipse hole in the centre of it with a small protrusion for the wedge. The stamp "Wm MACKAY" is seen twice on the front face and once on the top of the piece.
c- The wedge is made of the same hardwood as the stem and fence. It is rounded in a circular form on one end, then widens from the neck toward the bottom. It fits perfectly into the fence's hole to secure it in place along the stem.
A marking gauge is a tool used in woodworking and metalworking to mark straight lines parallel to a surface. A worker would adjust the position of the fence, place the wedges to hold it in place, then would run the gauge along the surface, using the fence to keep it straight. The marking iron scores the surface of the workpiece. With some models, the marking iron can be switched out for a pencil or a sharper iron.