Contract No. 20, Coldbrook-Swift Tunnel, Barre, Hardwick, Greenwich, looking west at Sta. 1312+86, Quabbin Aqueduct, Hardwick, Mass., May 9, 1934

Contract No. 20, Coldbrook-Swift Tunnel, Barre, Hardwick, Greenwich, looking west at Sta. 1312+86, Quabbin Aqueduct, Hardwick, Mass., May 9, 1934

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