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The first great success for the ballpoint pen came on an October morning in 1945 when a crowd of over 5,000 people jammed the entrance of New York’s Gimbels Department Store. The day before, Gimbels had taken out a full-page ad in the New York Times promoting the first sale of ballpoints in the United States. The ad described the new pen as a "fantastic... miraculous fountain pen ... guaranteed to write for two years without refilling!" On that first day of sales, Gimbels sold out its entire stock of 10,000 pens-at $12.50 each!

Actually, this "new" pen wasn't new at all and didn't work much better than ballpoint pens that had been produced ten years earlier. The story begins in 1888 when John Loud, an American leather tanner, patented a roller-ball-tip marking pen. Loud’s invention featured a reservoir of ink and a roller ball that applied the thick ink to leather hides. John Loud’s pen was never produced, nor were any of the other 350 patents for ball-type pens issued over the next thirty years. The major problem was the ink - if the ink was thin the pens leaked, and if it was too thick, they clogged. Depending on the temperature, the pen would sometimes do both.

The next stage of development came almost fifty years after Loud’s patent, with an improved version invented in Hungary in 1935 by Ladislas Biro and his brother, Georg. Ladislas Biro was very talented and confident of his abilities, but he had never had a pursuit that kept his interest and earned him a good living. He had studied medicine, art, and hypnotism, and in 1935 he was editing a small newspaper-where he was frustrated by the amount of time he wasted filling fountain pens and cleaning up ink smudges. Besides that, the sharp tip of his fountain pen often scratched or tore through the newsprint (paper). Determined to develop a better pen, Ladislas and Georg (who was a chemist) set about making models of new designs and formulating better inks to use in them.

One summer day while vacationing at the seashore, the Biro brothers met an interesting elderly gentleman, Augustine Justo, who happened to be the president of Argentina. After the brothers showed him their model of a ballpoint pen, President Justo urged them to set up a factory in Argentina. When World War II broke out in Europe, a few years later, the Biros fled to Argentina, stopping in Paris along the way to patent their pen.

Once in Argentina, the Biros found several investors willing to finance their invention, and in 1943 they had set up a manufacturing plant. Unfortunately, the pens were a spectacular failure. The Biro pen, like the designs that had preceded it, depended on gravity for the ink to flow to the roller ball. This meant that the pens worked only when they were held more or less straight up, and even then the ink flow was sometimes too heavy, leaving smudgy globs on the paper. The Biro brothers returned to their laboratory and devised a new design, which relied on "capillsry action" rather than gravity to feed the ink.