Difference Engine is an evolving touring exhibition, a model of autonomous artist curation, by artists Mark Cullen, Wendy Judge Gillian Lawler & Jessica Foley, featuring Gordon Cheung^, whose works infiltrate the grouping with the Portrait of Charles Babbage, the early founder of what was to become the ‘computer’. Cheung’s work is the only piece that is a constant through Difference Engine’s ensemble installations. For Limerick City Gallery of Art, Difference Engine bring existing work, but they also work with the spaces to make something that is particular to LCGA – theirs is a collaborative practice that is highly individual – an ambiguity that works for each artist, for each place and yet has a distinct character.