"Hard" rubber, made from vulcanized rubber originally developed by Charles Goodyear in 1844. The name comes from its intended use as a substitute for ebony wood, and was the material used in most of the earliest fountain pens.

see ebonite

Black chased hard rubber was one of the mostly commonly used materials for fountain pens in the early years of the 20th century. Chasing refers to the pattern imprinted on the pen.

A Parker 51 cap design that is reminiscent of the silhouette of the Empire State Building in New York City. In green and pink 14k gold, the Empire cap is very valuable and collectible.

Conklin's line of flat-top pens during the '20s. In the early '30s Conklin introduced the Endura Symetrik which followed the streamline trend of the era.

Wahl-Eversharp's entry into the streamlined pen design fashion of the early '30s. The Equipoised only lasted a few years before being replaced by the Doric. Note that "Equipoised" was Wahl's term for this pen, while the contemporary Bexley is called "Equipoise.""

A Mabie Todd line which ran from 1924 through the late '30s.

The Wahl Adding Machine Co. purchased the Ever-Sharp mechanical pencil company in 1914. Soon after, they began producing fountain pens under the Wahl name having purchased the Boston Pen Co. In 1941, Wahl changed the name of the entire company to Eversharp. Parker bought Eversharp in 1957, but the Wahl company still exists making barber tools.