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The boy mechanic, book 3

Book 3 — A Wire-Screen Pincushion

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Illustration from The boy mechanic, book 3: 800 things for boys to do

Pins Placed in This Durable Desk Pincushion Arrange Themselves in Vertical Position, Head Up

Pins placed in a pincushion like that shown automatically arrange themselves vertically, head up, so that they may be removed handily when needed. The pincushion is durable, and a useful device for the desk. It is made by binding two layers of ordinary screen wire between wooden frames, mounted on a wooden base, ¹⁄₄ in. thick, 2¹⁄₂ in. wide, and 3¹⁄₂ in. long. The frame can be finished neatly, and made of hard wood to match other desk fittings.—D. J. McKean, San Francisco, Calif.

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