No Copyright - United States
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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 1, Chief Engineer set
Typed on back: Appearance of concrete lining after stripping of forms in circular section of tunnel, Shaft 1, Sta. 21+10 looking west. Platform in center is used as runway for side dump cars carrying concrete.
Notes (acquisition):
Massachusetts Metropolitan District Commission; Massachusetts Department of Conservation and Recreation