Print, Photographic

2012.045.512Photo

Print, Photographic

2012.045.511Photo

Transparency, Lantern-slide

2005.068.050Photo

Transparency, Lantern-slide

2005.068.047Photo

Transparency, Lantern-slide

2005.068.044Photo

Print, Photographic

1991.064.096Photo

Lithograph

1968.123.017Archive

Illustrations Showing Progress of Work on the New Lock,
St. Mary's Falls Canal, Michigan

Lithograph

1968.123.016Archive

Illustrations Showing Progress of Work on the New Lock,
St. Mary's Falls Canal, Michigan.

Lithograph

1968.123.015Archive

St. Mary's Falls Canal,
Figure 1, Pier Revetment.
Figure 2, Crib in South West Pier

Lithograph

1968.123.014Archive

St. Mary's Falls Canal,
Movable Dam. Arrangement of Wickets and Counterweight.

Lithograph

1968.123.013Archive

St. Mary's Falls Canal,
The Movable Dam

Lithograph

1968.123.012Archive

St. Mary's Falls Canal,
The Valves and Valve Engines.
The Accumulator.