I am not sure what this actually does - I assume it is a splitting station for the large pipe that crosses the Canal nearby. The vignetting is from shooting through the fence at a wide aperture.
Praktica TL-5B with Vivitar 28mm f/2.5 and Konica IR750. Red Filter.
Processed: Microphen Stock 6m at 20c.
Scanned Epson V500.