This section is from the book "The Boy Mechanic Vol. 2 1000 Things for Boys to Do", by Popular Mechanics Co.. Also available from Amazon: The Boy Mechanic, Vol2: 1000 Things for Boys to Do.
A useful instrument for seamstresses and makers of paper patterns and stencils can be made of a piece of steel or iron and a wafer razor blade. The end of the metal is flattened and two holes drilled to match the holes of the razor blade. Small screw bolts are used to attach the blade to the handle. Place a cork on one edge as a protection for the hand of the user. - Contributed by Maurice Baudier, New Orleans, La.
Ill: The Wafer Blade Attached to the Handle, the Top Edge being Protected with a Cork