No Copyright - United States
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No known restrictions on use.
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: Aggregate plant at Shaft 7 with storage piles in the rear. Primary crusher receives only such material as passes over rotary "Grizzly" with 4 in. circular openings shown under hoist in foreground.
Notes (acquisition):
Massachusetts Metropolitan District Commission; Massachusetts Department of Conservation and Recreation