No Copyright - United States
No known copyright restrictions.
No known restrictions on use.
Notes:
Title supplied by cataloger.
Print in album volume MDWSC, Contract 4, 8 and 12, Coldbrook-Swift Tunnel Shafts 1, 2, 3, 4, 5, 6 and 7, Volume 1, Chief Engineer set
Typed on back: Track laying and hand mucking near Sta. 617+00. Showing position of muck after shot. "Slick sheets" have not been used for this round and are leaning against the left wall.
Notes (acquisition):
Massachusetts Metropolitan District Commission; Massachusetts Department of Conservation and Recreation