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File:Ofi 1907-001 ov.gif

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"Boston-Richardson Mine-Vertical Shaft and Vertical Projection of Incline Shaft Showing Depth Reached and Distance Driven South Side". 1907. http://www.gov.ns.ca/natr/meb/download/mg/ofi/htm/ofi_1907-001.asp. Retrieved 6 August 2010.

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Date/TimeThumbnailDimensionsUserComment
current03:33, 16 August 2010Thumbnail for version as of 03:33, 16 August 2010600 × 667 (197 KB)Yhzsailor (talk | contribs)"Boston-Richardson Mine-Vertical Shaft and Vertical Projection of Incline Shaft Showing Depth Reached and Distance Driven South Side". 1907. http://www.gov.ns.ca/natr/meb/download/mg/ofi/htm/ofi_1907-001.asp. Retrieved 6 August 2010.
03:31, 16 August 2010Thumbnail for version as of 03:31, 16 August 2010600 × 667 (197 KB)Yhzsailor (talk | contribs)"Boston-Richardson Mine-Vertical Shaft and Vertical Projection of Incline Shaft Showing Depth Reached and Distance Driven South Side". 1907. http://www.gov.ns.ca/natr/meb/download/mg/ofi/htm/ofi_1907-001.asp. Retrieved 6 August 2010.

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