Sudbury River Conduit. B.W.W. Div. 4, Sec. 16 Nov. 14, 1876, view at east end of Sec. 16 showing excavating con..., stone and brick masons.

Sudbury River Conduit, B.W.W., div. 4, sec. 17, Nov. 13, 1876. View near rock-cut on sec. 17 showing ledgemen in the foreground and brickmasons in the background.

Sudbury River Conduit, B.W.W., div. 4, sec. 17, Nov. 13, 1876. View near rock-cut showing ledgemen in the foreground and brickmasons in the background.