Length 23.8cm x Width 4.8cm x Height 16.4cm
a- Length 23.8cm x Width 4.8cm x Height 12.4cm
b- Length 17.2cm x Width 2.5cm x Height 1.2cm
c- Length 19.7cm x Width 2.9cm x Height 0.3cm
Fillister grooving plane comprised of three parts, a wooden rectangular body with an adjustable sole and an adjustable metal portion that moves down the front of the plane to the sole (a), a wooden wedge that tapers to a point at the bottom and is rounded at the top (b), and an iron with a flat blade (c). The wedge and the iron fit together inside the plane and the wedge holds the iron in place as the plane runs along the wood beneath the plane. Stamped on the toe of the plane is "H. WEBB", "MOSELEY LATE MUTTER", "F.J. STRUDWICK", "WEBB", and "I BLOWER". Stamped on the heel of the plane is "I BLOWER".
These sash planes are used to build sash window frames. Two blades work simultaneously on a single workpiece. One, the grooving or rabbet iron, cuts a groove for the glass window pane to sit in. The other, the sash or other molding plane, cuts the decorative profile of the window frame. In some cases, the distance between the cutting irons can be adjusted, so the plane can be used for several different projects.