No Copyright - United States
No known copyright restrictions.
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, Chief Engineer set
Typed on back: Tunnel lining equipment. Moveable switch for delivery of aggregate to mixer.
Notes (acquisition):
Massachusetts Metropolitan District Commission; Massachusetts Department of Conservation and Recreation