Parker 51
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Surface patents show Microsoft's novel approach to pen storage - Neowin
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White Ballpoint Pen BW - Wood Cross Section Oak Rings #36751 | eBay
Click-pen mechanism of a ballpoint pen. Illustration of one of the... | Download Scientific Diagram
File:Cross section of the unopened fruiting body of the New Zealand basket fungus (Ileodictyon cibarium), next to a ballpoint pen..JPG - Wikimedia Commons
