CIRCULAR PLANE
Short, bowl-shaped cast housing with two left-sided wave housings, an overhang at the front with thread and a screw in the clamping slot. Below, a dovetail cut across the full width. Sole made of 1 mm steel sheet, mouth: 4x45 mm, riveted 18 times on an iron wedge piece 17/16x57x6 mm, riveted into the cast body. The two 33 mm long waves on the left inside the housing have a guide that sits on the two radius guide rods. The guide rods are 110x38x16 cm long, with 32 and 28 mm long tooth segments fixed at the top. These are still without the bending gauge. At the front, there is a 9 mm spherical head 45 mm screw with a left-hand thread in the clamping slot of the housing. It has a 6 mm internal thread (right-hand) and is connected with lugs to the front guide rod.

The iron stop plate 5/20x45x125 mm is screwed into the housing at the back and bottom. It carries a cast handle and the lateral adjustment lever with a small roller. The fine adjustment screw Ø 25 mm made of bronze, with the joint lever that engages into the plane iron cap and the iron cap screw.

Double iron: 44 mm

Cutting angle: 53°

Mark: STANLEY PAT APL 19.92

Iron cap mark: S 113