Sheaffer's name for their early plastic. Sheaffer made the first plastic pens in 1924. Celluoloid as well, like Permanite and Pyralin.

Same as ink feed, or feeder.

a pen with a ring for a chain or ribbon on top instead of a pocket clip. These are usually lady's pens since it was considered inappropriate for women to wear pens in an external pocket.

another pattern used to adorn hard rubber pens. Ripple designs are best known in Waterman's pens and came in several color patterns.

Metal covering - usually gold or silver. Can be solid or filigree. Some people refer to the entire pen as an "overlay" rather than just the covering itself. "

Wahl's exclusive clip that had a small ball at the end that aided in moving the clip over pockets. Wahl probably obtained the patent for the clip when they purchased the Boston pen company.

a special line within Parker's Challenger series. Royal Challengers had a distinctive sword clip early on which was changed to a stepped clip. They are also distinctive in their herringbone design in three colors: gold, silver and burgundy.