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BTC Annual Report 07, 1901 Plate 07: East Boston Tunnel, Roof Shield Detail
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BTC Annual Report 07, 1901 Plate 08: East Boston Tunnel Construction, Section B
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BTC Annual Report 07, 1901 Plate 09: East Boston Tunnel, Main Heading
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BTC Annual Report 07, 1901 Plate 10: East Boston Tunnel Excavation
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BTC Annual Report 07, 1901 Plate 12: East Boston Tunnel, Disposal Railway
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BTC Annual Report 07, 1901 Plate 13: East Boston Tunnel, Outside Airlocks
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BTC Annual Report 08, 1902 Plate 02: East Boston Tunnel Profile
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BTC Annual Report 08, 1902 Plate 03: East Boston Tunnel Excavation Cars
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BTC Annual Report 08, 1902 Plate 04: East Boston Tunnel, Pump Chamber Entrance
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BTC Annual Report 08, 1902 Plate 05: East Boston Tunnel, Roof Shield Repairs
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BTC Annual Report 08, 1902 Plate 06: East Boston Tunnel Ventilating Chamber
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BTC Annual Report 08, 1902 Plate 08: East Boston Tunnel, Roof Shield During Construction
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BTC Annual Report 08, 1902 Plate 09: East Boston Tunnel Roof Shield Detail
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BTC Annual Report 08, 1902 Plate 10: East Boston Tunnel Roof Shield To Be Lowered
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BTC Annual Report 08, 1902 Plate 11: East Boston Tunnel, Smoke Pipe Erection
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BTC Annual Report 08, 1902 Plate 12: East Boston Tunnel Cross Section 61+90
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BTC Annual Report 08, 1902 Plate 13: East Boston Tunnel Cross Section 63+10
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BTC Annual Report 08, 1902 Plate 14: East Boston Tunnel Excavation at Fiske Building
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BTC Annual Report 08, 1902 Plate 15: East Boston Tunnel, Steel Rods in Sidewalls
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BTC Annual Report 08, 1902 Plate 16: East Boston Tunnel, State Street Structures
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BTC Annual Report 09, 1903 Plate 02: East Boston Tunnel
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BTC Annual Report 09, 1903 Plate 03: Excavating for Downtown Station on East Boston Tunnel
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BTC Annual Report 09, 1903 Plate 04: East Boston Tunnel, Roof Shield with Work Complete
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BTC Annual Report 09, 1903 Plate 05: East Boston Tunnel, Rear of Roof Shield
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