A rare wartime-era glimpse of one of England's most ingenious Victorian engineering marvels — the Barton Swing Aqueduct at Barton-upon-Irwell, Greater Manchester — captured here alongside the adjacent Barton Road Swing Bridge, whose name is boldly stencilled on the steel truss span. Both structures pivot on a central island to allow tall vessels passage along the Manchester Ship Canal, a feat of hydraulic engineering that astonished the world when the canal opened in 1894. The brick control tower at right, with its distinctive pyramidal roofline and multi-paned windows, housed the machinery operators who orchestrated the graceful, water-filled swinging tank that replaced James Brindley's original 1761 stone aqueduct. The caption reads "The Aqueduct, Barton," though the photograph centres on the road bridge, reflecting how locals used the names interchangeably for this celebrated pair of structures. A handwritten date of 1-8-45 on the reverse places this card firmly in the final months of World War II, a moment when Britain's industrial waterways were still vital arteries of the war economy. The sepia real-photo style and catalogue number 8638 suggest production by a regional English publisher active in the 1930s–40s. An evocative piece of industrial heritage history for canal, civil engineering, and Manchester area collectors.