Established in 1898 in Toledo, Ohio, the Conklin Pen Company quickly changed writing instruments forever when it patented the self-filling pen known as the Crescent Filler, now recognized as the world’s first practical self-filling fountain pen. With Mark Twain as its spokesman, Conklin thrived and Crescent Fillers became one of the most beloved pens in history. Each Crescent Filler utilizes Conklin’s groundbreaking original design, one that still works as effortlessly as it did a century ago. Crafted from metal and plated with a rainbow PVD, this limited edition pen is a beauty to behold and is tastefully engraved with Mark Twain’s signature along the band. Each pen still maintains the original Conklin® spring loaded rocker clip that was patented in 1916, the perfect addition to any pocket or jacket. The Crescent is known for its easy-to-fill reservoir. To load the pen, simply press the crescent mechanism on the barrel to empty the rubber bladder; ink flows back in as the crescent is released. The Crescent is fitted with Conklin’s Cushion Point flexible steel nib with crescent-shaped breathing hole. This fountain pen is offered with your choice of a reliable, smooth-writing German made JoWo #6 black steel nib in Extra Fine, Fine, Medium, Broad, or 1.1mm Stub, or the Omniflex flexible black steel nib for variation in line width. With six nib options, you are sure to find a selection to fit your handwriting style. Filling via the included converter or international cartridges.