 One of the few large scale Cullen works on public display is the mural in the foyer of the Erno Goldfinger designed Greenside Primary School in west London, completed in 1953.His 1958 ceramic mural in Coventry, depicting the history of the City and its post-war regeneration, is on a much grander scale though now relocated away from its original central location.His techniques consisted largely of sketchy drawings that conveyed a particularly clear understanding of his ideas, and these had a considerable influence on subsequent architectural illustration styles.