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Notes:
Title supplied by cataloger.
Print in album volume MDWSC, Contract 17, Wachusett-Coldbrook Tunnel, Tunnel West and Shaft 8, Volume 2, Reference set
Typed on back: Concrete aggregate plant at Shaft 5, looking northwesterly showing coarse and fine aggregate piles. Pipe under conveyor for fine aggregate used for blowing air against material at end of conveyor to remove excess of fines.
Notes (acquisition):
Massachusetts Metropolitan District Commission; Massachusetts Department of Conservation and Recreation