Clocks and Watches by: Science Service/Science Program
Softcover. unknown, Nelson Doubleday/Odhams Books, 1st, 1971, Book: Very Good, Dust Jacket: None, 63 pages. Red stapled wrappers with color illustration, 13 color tipped-in plates, profusely illustrated with b&w and monotone plates. Light rubbing to wrappers, upper left corner of front panel lightly discolored, pages crisp and unmarked; overall, a very clean, tight copy.