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Photograph

Northeast View of Interior of Power House Coffer Dam

Date: 09 30 1912
Description: Pile drivers working within the confines of the coffer dam. Men are on the high trestle constructing chutes for pouring concrete.
Photograph

Men Install Pole with Modified 10-20 Tractor

Date: 08 09 1927
Description: Men use a modified McCormick-Deering 10-20 industrial tractor with an attached trailor and post hole digging rig auger to install a telephone or electric p...

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