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Notes:
Title supplied by cataloger.
Print in album volume MDWSC, Contract 14, Wachusett-Coldbrook Tunnel, Tunnel East and Shaft 1, Volume 3, Chief Engineer set
Typed on back: Looking west in tunnel about 4000 feet west of Shaft 2. Car dumping from moveable platform on to belt which takes batched aggregate to mixer.
Notes (acquisition):
Massachusetts Metropolitan District Commission; Massachusetts Department of Conservation and Recreation