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1105. Miracle Run Mine

1106. Coal Laboratory Building

1107. Equipment in a Coal Laboratory

1108. Technician Working at the Arkwright Coal Laboratory

1109. Equipment in a Coal Laboratory

1110. Equipment in a Coal Laboratory

1111. Equipment in a Coal Laboratory

1112. Technician Works with Samples at an Unidentified Coal Laboratory

1113. Lab Technicians Perform Tests in an Unidentified Coal Laboratory

1114. Pocahontas Coal Company Laboratory Technician at Work

1115. Coal Lab Equipment at the Arkwright Laboratory

1116. Coal Lab Equipment at the Arkwright Laboratory