Contract No. 84, Superstructure (Head House) , Shaft 4 of Southborough Tunnel, Pressure Aqueduct, Section 2, Southborough, view showing bronze window grille in position after correction by silver soldering, headhouse at Shaft 4, Southborough, Mass., Jul. 11, 1941

Contract No. 84, Superstructure (Head House) , Shaft 4 of Southborough Tunnel, Pressure Aqueduct, Section 2, Southborough, view showing bronze window grille in position after correction by silver soldering, headhouse at Shaft 4, Southborough, Mass., Jul. 11, 1941

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