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Rudolph (J.S.): Make Your Own Working Paper Clock
O/P. 40 pages, illustrated, 1983. The preface, by Isaac Asimov, is followed by instructions and pages of thick card which when cut out and assembled make a working weight-driven pendulum wall clock - all you need to complete the clock is wire (for the arbors), glue, string and sand (for the weight). Have fun! Very good copy, card covers. (Ref: K3819 - L3)  in stock.