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Parker 51




With various refinements, the "51" stayed in production until 1972 . The most significant design change came in 1948 , with the introduction of a much improved filling system. At the same time, Parker reformulated its ink, reducing the alkalinity, adding a selection of brilliant colors, and calling the new product Superchrome.

The "51" is among the most popular pen models sought out by pen collectors, and in 2002 Parker issued a lookalike model called the 51 Special Edition. The elegant design is practically timeless, and in 2004 it resurfaced with the release of the Parker 100 , a larger, heavier pen with truly modern styling that is unquestionably a tribute to the looks of its forebear.

The "51" was revolutionary at the time, with its hooded, tubular nib and multi-finned collector, all designed to work in conjunction with the pen's proprietary ink, allowing the nib to stay wet and lay down an even line with either the ultra-fast drying ink or more traditional inks. The design is so robust and practical that most "51" pens made since 1948 that are "found in the back of a drawer” can be filled with ink and used immediately because of their Pli-Glass sacs, though earlier Vacumatic-filling units may need restoration to make them operational due to their rubber diaphragms.

The pen's resemblance to the sleek fuselage of the P-51 Mustang , a Fighter Plane used extensively during the war, had no bearing on its name; but Parker took advantage of the coincidence by comparing the pen and the plane in its advertising. Additionally, a pilot who is suspected of falsifying flight records in his logbook in order to overstate his actual experience is said to have logged "P-51 hours," relying on the ambiguity of the term "P-51" to avoid directly confronting the suspect.


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