Appealing original spiral-bound operating system reference manual for Apple Pascal, 5.75 x 8.5, 298 pages, signed on the front cover in blue felt tip, "Think Different! Woz," and in black felt tip, "ronald G. Wayne, Co-Founder—Apple Computer Co." In fine condition, with light edgewear, some scattered surface scuffing, and a PSA/DNA label affixed to the lower right corner (certificate of authenticity not present).
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