This paper looks at the research methodology and findings of SHIPS in the SKY by Sheffield Hallam University Professor of Film and Media Arts Esther Johnson. Inspired by Alan Boyson’s (1930–2018) 66x64ft ‘Three Ships’ mural (the UKs largest mosaic) this project uncovers alternative histories of an iconic Hull landmark. The post-war mural floats above the entrance to the former Hull & East Riding Co-operative Society department store, later a British Home Stores. Two further Boyson murals rediscovered inside the building are ‘FISH’, and a ‘sponge-print’ mural. These murals are emblematic of Britain’s post-war rebuilding, and of the rich seam of Hull’s maritime heritage. The building has had many lives – market, dance hall, music venue and ni...