Router Plane – Iron Construction.

Cast iron base plate with hole and rim.
35 mm iron socket in front of the hole, fitted with a 45 mm long, 6 mm vertical screw.
Thread: WW 55° 24G     3/16"     7/32"

Closed iron yoke with clamping screw serves as iron holder.
Sole: 1.4 cm thick wooden plate screwed on from above.

Iron: Square section with 5 mm slot over the rear edge.
Depth adjustment from 0 to 16 mm.

Iron: 12 mm     Length: 80 mm
Square section: 9×9 mm (edge facing forward)
Bent 32 mm at approx. 80°
Bevel on top: 25°
Cutting angle: 19° = 44°

Reference: In the book THE STANLEY PLANE, page 97
(Note: Typeface differs)