Plan of Ontario Mine (reduced reproduction), 1927 Folder 29 CONSOL Energy Inc. Mine Maps and Records Collection, [removed], AIS[removed], Archives Service Center, University of Pittsburgh - Consol Energy Center - Document - PDFSEARCH.IO

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	Plan of Ontario Mine (reduced reproduction), 1927 Folder 29 CONSOL Energy Inc. Mine Maps and Records Collection, [removed], AIS[removed], Archives Service Center, University of Pittsburgh Add to Reading List Document Date: 2013-06-01 23:24:05 Open Document File Size: 313,38 KB Share Result on Facebook

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Plan of Ontario Mine (reduced reproduction), 1927 Folder 29 CONSOL Energy Inc. Mine Maps and Records Collection, [removed], AIS[removed], Archives Service Center, University of Pittsburgh Add to Reading List