ledgemen

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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.

Sudbury River Conduit, B.W.W., div. 4, sec. 17, Nov. 13, 1876. View ne...

Boston Massachusetts stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yo... More

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 ne...

Boston Massachusetts stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yo... More

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.

Sudbury River Conduit, B.W.W., div. 4, sec. 17, Nov. 13, 1876. View ne...

Boston Massachusetts stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yo... More

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 ne...

Boston Massachusetts stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yo... More