'A Celebration of Engineering Sciences' relief mural, Department of Mechanical Engineering, Woodhouse Lane, Leeds

The 'A Celebration of Engineering Sciences' relief mural is a sculptural relief created in 1963, designed by Allan Johnson and fabricated by Alec Dearnley. It is made of glass fibre reinforced polyester (GFRP) and is located on the front of the Mechanical Engineering Department building on Woodhouse Lane in Leeds, which was constructed between 1957 and 1963 by Lanchester & Lodge.

The relief measures 21.3 meters (70 feet) in length and is attached at the first-floor level to a projecting lecture theatre. It features a curved concrete frame that holds eleven vertical panels of varying widths. These pierced relief panels are made from GFRP, colored grey to match the concrete, with a black background that enhances the forms. Each panel has thin side frames that create a vertical grid within the concrete frame and showcases bold abstract sculptural forms, supported by a framework of thin horizontal, vertical, and diagonal lines. While the design is abstract, it suggests rudimentary link mechanisms. The surface of the panels retains the appearance of the worked clay from which the mould was made, highlighting the man-made quality of the artwork.