From 1945 to 1953, British painter David Bomberg taught art at the Polytechnic forming the 'Borough Group' of artists with his pupils in 1946. In 1956, the Polytechnic was designated a Regional College of Technology and Dr J E Garside was installed as the new Principal until 1965, when Vivian Pereira-Mendoza took over. Further extensions to the buildings were made during the 1960s with the opening of the National College Wing in 1961 and the extension buildings and Tower Block in 1969, which were officially opened by Prince Philip, Duke of Edinburgh.