Desmond Paul Henry ranks among one of the few early British pioneers of Computer Art/Graphics of the 1960's. During this period he constructed a total of three mechanical drawing machines (in 1960, '63 and '67) based around the components of analogue bombsight computers. Henry’s life-long passion for all things mechanical inspired him to purchase an army surplus analogue bombsight computer in the early 1950s. For years he would gaze transfixed at the ‘peerless parabolas’ (Henry) of its inner working parts when in motion. Then in the early sixties he decided to try and capture these mechanical motions on paper and so was born the first of a series of three drawing machines based around the components of the bombsight computer itself.