L: 43.2cm W: 6.9cm H: 17.5cm
a- L: 43.2cm W: 6.9cm H: 17.5cm
b- L: 15.0cm W: 5.4cm H: 1.7cm
c- L: 19.5cm W: 5.4cm H: 0.7cm
A wooden jack plane consisting of 3 parts.
a- The body is a rectangular prism made of a brown hardwood. There is a curved handle protruding from the top body near the heel end. A wide throat cuts diagonally through the body about 1/3 of the length back from the toe end. The sole is flat. A stamp on the toe reads "D. MALLOCH/PERTH".
b- The wedge is wide-set and made of the same hardwood as the body. It tapers toward the bottom then splits into 2 prongs.
c- The cutting iron consists of a primary and secondary iron secured together by a screw. The primary iron is rectangular with chamfered top corners. The bottom edge is flat and sharp. A partially-obscured stamp on the iron reads "DAVID MALLOCH/WARRANTED/(obscured).
Jack planes are large smoothing planes, often used for preliminary smoothing of wood edges. A more precise tool will be used to finish the piece. This plane’s double irons are slightly convexed to avoid marking the edges of the cut. Jack planes are usually 12-18 inches long, but can be found up to 30 inches.