File:HD Actinograph.jpg

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Original file ‎(721 × 877 pixels, file size: 217 KB, MIME type: image/jpeg)

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Description
English: I took this picture of my Hurter & Driffield's Actinograph, a boxwood/brass/cardboard two-slide slide rule.
Русский: Актинограф прибор измеряющий химическую интенсивность и напряжение лучей источника.
Date 30 December 2006 (original upload date)
Source Transferred from en.wikipedia to Commons.
Author Dicklyon at English Wikipedia

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Public domain This work has been released into the public domain by its author, Dicklyon at English Wikipedia. This applies worldwide.
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Dicklyon grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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  • 2006-12-30 04:28 Dicklyon 721×877× (222014 bytes) I took this picture of my '''Hurter & Driffield's Actinograph''', a boxwood/brass/cardboard two-slide slide rule.

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Date/TimeThumbnailDimensionsUserComment
current20:45, 24 January 2009Thumbnail for version as of 20:45, 24 January 2009721 × 877 (217 KB)Svajcr (talk | contribs){{Information |Description={{en|I took this picture of my '''Hurter & Driffield's Actinograph''', a boxwood/brass/cardboard two-slide slide rule.}} |Source=Transferred from [http://en.wikipedia.org en.wikipedia] |Date=2006-12-30 (original upload date) |Au

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