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Scarce original circa 1982 three-button ‘Mark II’ Hawley X063X roller mouse (Ser. No. 06759) developed for Xerox PARC by Bill English (co-inventor of the original mouse) and Jack Hawley. The rectangular mouse, 2˝ x 3.25˝ x 1˝, features three black buttons to the top, and a clear product label from The Mouse House (Berkeley, California) to the underside. The mouse retains its original wire with serial port connector. In fine condition.
An important early commercial mouse, the Hawley X063X represents a key step in the transition of the computer mouse from research laboratory prototype to practical input device. Developed by Bill English, co-inventor (with Douglas Engelbart) of the original mouse, and Jack Hawley, the three-button “Mark II” reflects the influence of Xerox PARC’s pioneering work in graphical user interfaces and human-computer interaction. Its distinctive roller-ball mechanism, three-button layout, and Mouse House production label make it a desirable artifact from the formative years of personal computing.
