IBM 407 Accounting Machine Manual of Operation
New York: International Business Machines Corporation 1957. 187 pages. Original publishers blue/white/black printed wraps. "IBM 407" underlined in magic marker, "Property of IBM Technical Service Office Education Department Please Return" stamp and "SADOWSKI" all written on front cover. Stamp also appears on first page. A very detailed operations manual including many wiring diagrams, some photographs, and much in the text to help the customer actually use this machine. Essential for anyone restoring or attempting to understand their existing historical machine. The verso of the title page notes this is a "Major Revision November 1957" with notes on pages and subjects updated. Form 22-5765-8. Very Good. Wraps. [18423]
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