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217. Visitors Pose with Hanna Coal Company's Mountaineer Shovel

A man and woman standing next to a crawler track.

218. Visitors Pose with Hanna Coal Company's Mountaineer Shovel

219. Visitors and Workers Standing in the Shovel of the Tiger

Two men running a roof bolter in Jamison No. 9 mine.

220. Miner Roof Bolting at Jamison No. 9 Mine

Two men sitting on a bench in a mine in an underground mine.  Sign reads, 'It is a dischargeable offence to run over any cable.'

221. Miners Seated on Bench in an Underground Mine.

Close-up view of roof drill in action. Man in background is tightening bolt with air powered wrench at Consol. No. 204, Jenkins, Ky.

222. Miners Roof Bolting at Consol No. 204, Jenkins, Ky.

A coal cutter with nine foot cutting blade at work in Consol. Coal Co. Mine No. 32, Owings, W. Va.

223. Cutting Machine in Operation at Mine No. 32

224. Elrama Power Station

Front Row 'Left to Right'; N.T. Berry, North Western-Hanna, R.C. Larsen,North Western-Hanna, J.J. Larsen, North Western-Hanna. Back Row 'Left to Right'; Robert O'Conner, North Western-Hanna, J.E. Fier, North Western-Hanna, G.M. Allis, North Western-Hanna, M.L. Zhan, North Western-Hanna, Alfred Christopherson, North Western-Hanna, Harry Turner, Superintendent, Loveridge Mine.

225. Employees of the Loveridge Mine

226. Coal Miner at Work Underground

227. Elrama Power Station

12 th. st. heating plant, 650,000 lbs/hr.

228. 12th Street Heating Plant, Allegheny County Steam Heating Company.