George Gordon, Twentieth Century Wristwatches: La Danza delle Ore. Hong Kong: Timeless Elegance Co. Ltd., copyright 1990. Hardcover in dust jacket and slipcase, with color photographs of watches. The certificate of ownership states first edition, no. 05434, and gives a publication date of December 1989. Text in English and Italian.
Used, with light wear; dust jacket rubbed at spine tail; slipcase edges lightly scuffed.