No Copyright - United States
No known copyright restrictions.
No known restrictions on use.
Notes:
Title supplied by cataloger.
Print in album volume MDWSC, Contract 14, Wachusett-Coldbrook Tunnel, Tunnel East and Shaft 1, Volume 2, Chief Engineer set
Typed on back: Circular tunnel lining at Shaft 1 looking westerly toward transition section to horseshoe type at Sta. 26+24.
Notes (acquisition):
Massachusetts Metropolitan District Commission; Massachusetts Department of Conservation and Recreation