File:AmCyc Blasting - Coffer Dam.jpg

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AmCyc_Blasting_-_Coffer_Dam.jpg (395 × 266 pixels, file size: 35 KB, MIME type: image/jpeg)

Description
English: Woodcut/drawing illustrating a coffer dam to allow drilling into a submarine rock for blasting.
Date
Source The American Cyclopædia, v. 2, 1879, p. 701 (Fig. 5).
Author Unknown authorUnknown author
Permission
(Reusing this file)
Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:AmCyc_Blasting_-_Coffer_Dam.jpg

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9dcdfd14176ab9a6d7f7e0d134611112e83e56c1

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266 pixel

width

395 pixel

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Date/TimeThumbnailDimensionsUserComment
current19:11, 19 March 2014Thumbnail for version as of 19:11, 19 March 2014395 × 266 (35 KB)Library Guy{{Information |Description ={{en|1=Woodcut/drawing illustrating a coffer dam to allow drilling into a submarine rock for blasting.}} |Source =''The American Cyclopædia'', v. 2, 1879, p. 701 (Fig. 5). |Author =unknown artist |Date...

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