Conklin Mark Twain Crescent Filler Demonstrator Fountain Pen Red Zoom Conklin Mark Twain Crescent Filler Demonstrator Fountain Pen Red

The clear Demonstrator version of the Mark Twain Crescent Filler has been produced to celebrate not just Conklin's innovative design, but also Mark Twain's enthusiasm for this filling mechanism. As he put it: "I prefer it to ten other fountain pens, because it carries its filler in its own stomach, and I cannot mislay even by art or intention. Also, I prefer it because it is a profanity saver; it cannot roll off the desk."

Constructed from clear, jewel-red acrylic and accented in rose gold trim, it clearly shows the internal workings, making it easy to see how much ink remains.  The cap band is engraved with Mark Twain's signature.

The original Conklin Crescent Filler was the pen that made the brand famous. Thanks to the ingenious design of Roy Conklin, the Crescent Filler was one of the first pens to have a fully self-contained filling mechanism.

The mechanism is simple: the barrel contains a rubber ink sac and a cutaway in the barrel allows you to push the crescent through the side of the pen. The crescent is attached to a metal bar that presses against the side of the ink sac, squashing any air or ink out of it; once you release, the sac returns to its original shape, drawing ink into the pen. After a few presses the pen will be completely full.

An additional improvement made to his design in 1903 was a slight change to the safety ring that prevents accidental pressing of the crescent and the undesirable expulsion of ink that would accompany it. Whereas the original ring was free to rotate, the improved ring is shaped such that it comes to a stop after about a quarter turn, and friction holds it in place sufficiently until you want to fill the pen again.

Screw on cap with the classic Conklin rocker-style pocket clip. Polished nib available in a range of sizes. Please note: you may receive either a plain or bicolour nib; if you have a preference please contact our Customer Service team.

Measures:141mm closed, 129mm open, 165mm long posted, barrel diameter: 13mm. Weighs: 28g. The widest part of the pen, where the crescent protrudes is 20mm. Be aware that whilst this doesn't get in the way when writing with, or holding the pen, it will pose a problem if you intend to store this pen in a case: only the widest cases will accommodate it.

Supplied in a luxury Conklin gift box.

All Conklin writing instruments are guaranteed for life against mechanical failure due to faulty workmanship or materials.

Additional Information

Product Code:CK51687
Advance Mechanism:Capped
Ink Type:Liquid Ink
Item Colour:Red
Refill Type:Fountain Pen Ink
Tip Material:Steel
Tip Type:Fountain Pen
Clear demonstrator crescent-filler fountain pen
  • Demonstrator version of the ingenious crescent-filling design
  • Presented in luxury gift box
Full Description

Free Express UK Delivery

£256.50 inc VAT £213.75 ex VAT



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CK51687-B : In Stock
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CK51687-F : In Stock
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CK51687-OF : In Stock
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CK51687-S : In Stock
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