Beacon Hill tunnel, looking n.w. from sta.13 Beacon Hill tunnel, sec.2, looking s.e from sta.21 Portal of Beacon Hill tunnel Beacon Hill tunnel, sec.1, looking n.w. Park St. Station, Beacon Tunnel, looking east Park St. Station, looking west bound Park St. Station, looking east Cambridge Subway exit in south bound platform of Park St. Station Cambridge Subway entrance from south bound platform of Park St. Station Cambridge Subway exit from south bound platform of Park St. Station Exit and entrance coverings, Tremont St. Exit and entrance coverings, Tremont St. Escalator, Park Street Station, Boston, Mass. Reno inclined elevator, Park Street Station, Boston, Mass. Main entrance stairway, Park St. station Stairway from north-bound platform, Park St. Station Stairway from south-bound platform, Park St. Station Park St. Station, Cambridge subway Buildings #32-36 Grove St. Buildings #34-38 Grove St. 78-82 Myrtle St. Nos.131-134 Tremont Street, Boston, Mass., August 6, 1910 No.124 Tremont Street, Boston, Mass., August 9, 1910 No. 134 Tremont Street, Boston, Mass., August 9, 1910 Site of open-cut, Boston Common looking n.w. Site of shaft, Boston Common looking s.e. Beacon St. mall, Boston Common Beacon St. mall, Boston Common Beacon St. mall, Boston Common Beacon St. mall, Boston Common Shaft #1 and Beacon St. Mall, Boston Common, Boston, Mass., October 5, 1910 Shaft #1 and Beacon Hill, Boston Common, looking southeast, Boston, Mass., October 5, 1910 Shafts #1 and #2, Boston Common, looking southerly, Boston, Mass., October 5, 1910 Shafts and overhead structure, Boston Common, looking east Shafts and overhead structure, Boston Common, looking west Shafts and overhead structure, Boston Common, looking north Shaft #2, Boston Common, looking northwest, Boston, Mass., October 5, 1910 Shaft #3, Boston Common, looking east, Boston, Mass., October 5, 1910 Shaft #3, Boston Common, looking northwest, Boston, Mass., October 5, 1910 Engineers' offices, Boston Common Engineers' offices, Boston Common Underpinning at Post Building Underpinning at Post Building Supporting a 30" water pipe over the tunnel during construction, looking n. w. Northerly drift, upper level, sta.21+50, sec.2, looking w. Northerly drift, lower level, sta.21, sec.2, looking w. Southerly drift, lower level, sta.20+50, sec.2, looking e. Heading and shield from upper deck Arch, looking east, sec.1 Upper level, sta.22+25, sec.2, looking east
