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.
Broken fountain-pen barrels may be mended by the use of melted shellac. This can be done by heating some dry shellac and applying it to the fracture. Do not scrape off the surplus shellac, but shape it with a heated iron. A pen with such a repair has been in use for two years. - Contributed by G. D. Whitnpy Pittsburg, Pa