binkmeisterRick
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The crescent filling system involved what looked like a coin coming out of the side of the pen. You'd fill the pen simply by pressing down on the "coin" and bringing it back up again. The coin would push against the ink bladder, much like you would fill an eye dropper. The sliding ring around the pen threaded through the coin and prevented the coin from being accidentally pressed and squirting ink everywhere when using the pen. However, there was a notch in this ring, so to fill the pen, you'd turn the ring until the notch opening could allow the coin to be pressed into the pen body. After filling, you'd turn the ring again so it threaded back under the coin.
When Sheaffer created the lever filler mechanism, it made the crescent system obsolete, since the lever filler was simpler, less bulky, and just as effective.
Story has it that Twain favored the Conlkin Crescent Filler because the mechanism kept the pen from rolling off his writing desk.
When Sheaffer created the lever filler mechanism, it made the crescent system obsolete, since the lever filler was simpler, less bulky, and just as effective.
Story has it that Twain favored the Conlkin Crescent Filler because the mechanism kept the pen from rolling off his writing desk.