Here are two Esterbrook nib reference charts. They can help determine the qualities, shape, ink flow and usage for each of the Esterbrook nibs that are available.
Matt is an Internet Specialist for a multinational franchise. Matt has lived and worked in Hawaii, Chicago, South Florida and currently resides outside of Atlanta. He enjoys his hobbies including: Fountain Pens, Wetshaving, Clocks, Antiques & Coffee. He even roasts his own coffee weekly.