Figure 19. General arrangement of a Halladay geared windmill. In: "The Wind
Mill as a Prime Mover," by Alfred R. Wolff, p. 92. 1885.
Library Call Number M/1360 W855.
Image ID: libr0498, Treasures of the NOAA Library Collection
Category: Treasure/Wind Power/Art/
• High Resolution Photo Available
of the U.S. Department of Commerce, National Oceanic & Atmospheric
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November 10, 2017