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 Roof of tunnel in rear of #61 and #63 Phillips St., looking easterly Roof of tunnel in rear of #61 and #63 Phillips St., looking southeasterly Roof tunnel in rear of #13 and #15 Grove St. Brick building with man Entrance to tunnel under Beacon Hill at rear of #13-#15 Grove St. Part of building 1-3 Grove Place Rear of buildings 63-67 Phillips St. Part of building no.1 to 3 Grove Place Rear of buildings corner Grove Place and Grove St. Rear of Hotel Tudor and no.1 Joy St. Wooden entensions of buildings nos.63-67 Phillips St. looking westerly in Grove Place Building #1 Joy St. No.2 Joy St. No.2-3-4 Joy St. Rear of #5 Joy St. Rear of Joy St. buildings between Mt. Vernon and Beacon Sts. Rear of 26-28 Mt. Vernon St. Rear of 26-28 Mt. Vernon St. Rear of 34 Mt. Vernon St. Rear of 32-34 Mt. Vernon St. Mt. Vernon St. side of #14 Walnut St. Part of building n.e. corner Grove and Phillips Sts. S.e. corner of yard in #48-50-52 Phillips St. Yard in rear of 48-52 Phillips St. showing brick wall rebuilt by BTC Tree Rear of 50 Phillips St. Phillips St. corner of Grove St.