File:CGPagecoil.jpg

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Description
English: Charles Grafton Page's double helix coil, as marketed in 1848 by Boston instrument maker Daniel Davis Jr.
Date
Source Daniel Davis Jr., Catalogue of Apparatus, (Boston, 1848), Fig. 183, p. 37
Author Daniel Davis Jr.,
Permission
(Reusing this file)		 before 1923

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current01:40, 23 March 2010Thumbnail for version as of 01:40, 23 March 20101,104 × 934 (244 KB)Anemonella (talk | contribs){{Information |Description={{en|1=Charles Grafton Page's double helix coil, as marketed in 1848 by Boston instrument maker Daniel Davis Jr.}} |Source=Daniel Davis Jr., Catalogue of Apparatus, (Boston, 1848), Fig. 183, p. 37 |Author=Daniel Davis Jr., |Da

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