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From the Graphic Arts and Crafts Year Book, 1910 (Hamilton, OH: The Republican Publishing Company, 1910). I am not certain (as the source is promoting this for its qualities as an image, not its characteristics as gearing) that these are wooden patterns for gears, not actual gears).
The plan after the labyrinth at Versailles, drawn by David M. MacMillan in 2006, is dedicated by him to the Public Domain.
All other images appearing on this page are in the public domain.
All portions of this document not noted otherwise are Copyright © 2006-2010 by David M. MacMillan and Rollande Krandall.
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