File:AdvancingLongwall.png

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	16:54, 15 July 2009		516 × 762 (94 KB)	Douglas W. Jones	{{Information \|Description= {{en\|Origional caption: "Fig. 38. Panel Long-wall in Oklahoma." Plan of a multi-panel advancing longwall mine, circa 1917, using a face conveyor and rail haulage. The figure has been altered by moving the scale and legend.}

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