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 wire or finishing nail may be clinched as nicely as a wrought nail, if a nail punch or piece of iron is placed along the side of it, as shown at A, and the nail hammered into an arched form, as at B. The punch or rod is then withdrawn and the arch driven into the wood. - Contributed by James M. Kane, Doylestown, Pa.