Platinum #3776 Century Fountain Pen Sleek design, comfortable writing balance, smooth flow, and fast-drying ink. Founded in 1919, Platinum Pens is now nearing a full century of achievement. The #3776 “Century” celebrates this approaching anniversary and continues Platinum Pens’ tradition of technological innovation. With Platinum Pens, the pleasure of writing and the use of fine writing instruments will always be evolving. Platinum #3776 Century Fountain Pen has an innovative cap with the "Slip & Seal" mechanism. This design keeps the ink from drying out inside the pen over time as well as regulate the ink flow in the pen. The Platinum #3776 Century fountain pen comes with a 14k gold nib and a cartridge style fill system. Product Details Function: Slip & Seal mechanism (patent applied) Filling system cartridge or converter Includes one ink cartridge. Converter included Nib size: EF (Extra Fine), F(Fine), M(Medium),B(Broad), UEF(Ultra extra fine),SF(Soft Fine), and C(Double broad) MUSIC.