Black and white photographic print of the Welland Canal Aqueduct under construction, looking east, Oct. 27, 1929. Captioned 'General view syphon culvert at Welland.'
Black and white photographic print of the fourth Welland Canal Aqueduct under construction, c. 1930-1932, looking south. Captioned 'Old and Present Canal Aqueducts, Looking South from Syphon Culvert.'