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The Best Mechanical Pencils | Reviews by Wirecutter
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Space flown collectible artifacts - Writing Instruments
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Vintage Redipoint 3mm Mechanical Pencil Lead Holder California Door Company USA | eBay
Pencil, Mechanical, Garland 35-P, Apollo 11 | National Air and Space Museum
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That Story About the Million Dollar US Space Pen and Russian Pencil is BS » TwistedSifter
Amazing Science: NASA Spent Millions to Develop a Pen that Would Write in Space, whereas the Soviet Cosmonauts Used a Pencil
