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 1, Reference set
Typed on back: Irregularities in pegmatite bands in schist. The foliation of the schist is nearly horizontal. The dull surface surrounding is the normal and covered wall.
Notes (acquisition):
Massachusetts Metropolitan District Commission; Massachusetts Department of Conservation and Recreation