Item #54669 AOK; AUTOMATIC ORBIT KALCULATOR [CENTURY 21 WORLD'S FAIR, SEATLE, WA., 1962: ORBIT OF FRIENDSHIP 7 ON FEB. 20, 1962]
AOK; AUTOMATIC ORBIT KALCULATOR [CENTURY 21 WORLD'S FAIR, SEATLE, WA., 1962: ORBIT OF FRIENDSHIP 7 ON FEB. 20, 1962]

AOK; AUTOMATIC ORBIT KALCULATOR [CENTURY 21 WORLD'S FAIR, SEATLE, WA., 1962: ORBIT OF FRIENDSHIP 7 ON FEB. 20, 1962]

Boston, MA: Wolf R&D Corporation, 1962. Slide Calculator. Fine. Item #54669

Slide calculator to determine position of Friendship 7 over the earth in 1962. 14 x 5 inches. Issued at the Worlds Fair, Seattle, 1962. Includes 10 page illustrated instruction manual. Slide calculator and manual are both fine, unused within a long well worn illustrated paper sleeve.

Price: $25.00

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