Black and white photographic print of a postcard showing Lock 24 of the old Welland Canal in Thorold, c. early 1900s. The Montrose Paper Mill, Fire Hall and Flour Mill are also pictured.
Black and white photograph of Lock 7's gates, weighing 480 tons each, c. 1930s. From the booklet "Souvenir views of Welland Ship Canal" by the Photogelatine Engraving Company.
Black and white photograph of S.S. Bonde from Norway in Lock 8 of the Welland Canal, c. 1930s. From the booklet "Souvenir views of Welland Ship Canal" by the Photogelatine Engraving Company.
Black and white photograph of Lock 7 of the Welland Canal, looking north toward Flight Locks, c. 1930s. From the booklet "Souvenir views of Welland Ship Canal" by the Photogelatine Engraving Company.
Black and white photograph of an aerial view of Flight Locks 4, 5 and 6 of the Welland Canal looking north, c. 1930s. From the booklet "Souvenir views of Welland Ship Canal" by the Photogelatine Engraving Company.
Black and white photograph of Flight Locks 4, 5 and 6 of the Welland Canal looking south, c. 1930s. From the booklet "Souvenir views of Welland Ship Canal" by the Photogelatine Engraving Company.
Black and white photograph of the Twin Flight Locks 5 and 6 of the Welland Canal looking north, c. 1930s. From the booklet "Souvenir views of Welland Ship Canal" by the Photogelatine Engraving Company.
Black and white photograph of Lock 4 of the Welland Canal showing the power station and surge tank, c. 1930s. From the booklet "Souvenir views of Welland Ship Canal" by the Photogelatine Engraving Company.
Black and white photograph of Lock 3 of the Welland Canal, as seen from a ship looking south to Bridge 5, c. 1930s. From the booklet "Souvenir views of Welland Ship Canal" by the Photogelatine Engraving Company.
Black and white photograph of Lock 2 of the Welland Canal as seen from a ship, c. 1930s. From the booklet "Souvenir views of Welland Ship Canal" by the Photogelatine Engraving Company.
Black and white photograph of Lock 1, the Lake Ontario entrance to the Welland Canal, c. 1930s. From the booklet "Souvenir views of Welland Ship Canal" by the Photogelatine Engraving Company.
Black and white photograph of the S.S. Northumberland in Lock 1 of the Welland Canal, c. 1930s. From the booklet "Souvenir views of Welland Ship Canal" by the Photogelatine Engraving Company.
Black and white halftone photograph of the interior of the filling culvert in the west wall of Lock 1, during fourth Welland Canal construction, c. 1920. Size is 14 ft. x 16 1/2 ft. From the booklet "Welland Ship Canal (Under Construction)" by the…
Black and white halftone photograph of Lock 2 during fourth Welland Canal construction, c. 1920. From the booklet "Welland Ship Canal (Under Construction)" by the Department of Railways and Canals.
Black and white halftone photograph of the west wall of Lock 1 during fourth Welland Canal construction, c. 1920. 34 feet yet to be built is shown as a dotted illustration. From the booklet "Welland Ship Canal (Under Construction)" by the Department…
Black and white halftone photograph of a reinforced concrete entrance wall at Lock 1 being backfilled, during fourth Welland Canal construction, c. 1920. From the booklet "Welland Ship Canal (Under Construction)" by the Department of Railways and…
Black and white halftone photograph showing heavy rock cutting on site of Flight Locks, Section No. 3 for fourth Welland Canal construction, c. 1920. From the booklet "Welland Ship Canal (Under Construction)" by the Department of Railways and Canals.
Three black and white photographs of a ship in the Third Welland Canal, undated. The first photo is of the ship turning around, and the second and third shows it entering the Lock Pit, with the Courthouse in the right background.