No Copyright - United States
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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, Chief Engineer set
Typed on back: Blaw-Knox steel forms and carriage being assembled for tunnel lining just west of Shaft 6.
Notes (acquisition):
Massachusetts Metropolitan District Commission; Massachusetts Department of Conservation and Recreation