Shield for tunnel under Beacon Hill, Cambridge Connection Shield for tunnel under Beacon Hill, Cambridge Connection Shield for tunnel under Beacon Hill, Cambridge Connection Shield for tunnel under Beacon Hill, Cambridge Connection Shield for tunnel under Beacon Hill Supporting s.w. corner of Aaron Krause's building 15 Grove St. S.w. corner building 15 Grove St. supported by steel needle bms. Construction of tunnel under s.w. cor. of building 17 Grove St. Support of ells of 30+32 Grove St. from yard in rear of 50 Phillips St. Support of ells of 30 to 32 Grove St. from yard in rear of 50 Phillips St. Support of ells of 30 to 32 Grove St. from yard in rear of 50 Phillips St. Excavation in yard back of 50 Phillips St. and under ells of 38-34 Grove St . Support of s.w. corner of building #17 Grove St. on roof of tunnel Looking south on top of tunnel roof in Grove Place Underpinning n.w. corner of building in rear of 50 Phillips St. and ells of 32-34 Grove St. Street occupation n.w. corner Phillips and Grove Sts. Phillips St. looking east from Grove St. Rear of 13-15 Grove St. Light shaft between 13+15 Grove St. looking west Shield for tunnel under Beacon Hill for Cambridge connection Shield for tunnel under Beacon HIll for Cambridge connection Shield for tunnel under Beacon Hill for Cambridge Connection Shield for tunnel under Beacon Hill for Cambridge Connection Shield for tunnel under Beacon Hill for Cambridge Connection Shield for tunnel under Beacon Hill for Cambridge Connection Shield for tunnel under Beacon Hill for Cambridge Connection Shield for tunnel under Beacon Hill for Cambridge Connection Shield to be used for tunnel under Beacon Hill for Cambridge Connection Part of shield to be used for tunnel under Beacon Hill Part of shield to be used for tunnel under Beacon Hill Looking south up Grove St. from Phillips St. Southeast corner of yard in rear of #50 Phillips St. Part of shield for construction of Tunnel under Beacon Hill Part of northerly side wall of single arch section of tunnel under Beacon H ill near Station 3+85 Beginning of single arch section of tunnel under Beacon Hill station 3+85 Unfinished northerly side wall of single arch section of tunnel under Beacon Hill Surface occupation at Ss.w. corner of Phillips and Grove St. Part of shield to be used in construction of tunnel under Beacon Hill Part of shield delivered at Phillips and Grove Sts. Part of shield to be used in construction of tunnel under Beacon Hill Looking northwesterly from shaft in Phillips and Grove Sts. Looking northwesterly from shaft in Phillips and Grove Sts. Two arch section under intersection of Phillips and Grove Sts. Surface occupation Phillips St. looking east towards Grove St. Side wall of tunnel in light well between #13 and #15 Grove St. Light well between #13 and #15 Grove St. showing side wall of tunnel Intersection of Grove and Phillips Sts. looking north Intersection of Grove and Phillips Sts. looking north Roof of tunnel in rear of #61 and #63 Phillips St., looking easterly Looking easterly in Grove Place