Keywords: The Ambassadors, detail of measuring instruments, by Hans Holbein the Younger.jpg Double Portrait of Jean de Dinteville and Georges de Selve called The Ambassadors technique oil tempera oak National Gallery London On this upper shelf between the two ambassadors sit various instruments for measuring dates and time including an astronomical globe a cylindrical calendar two quadrants a sun clock and a torquetum All the instruments in this paradoxical picture show imprecise times Buck 98 Stephanie Buck Hans Holbein Cologne Könemann 1999 ISBN 3829025831 Creator Hans Holbein d J 1533 Museum National Gallery London 80px PD-old-100 Details of The Ambassadors Holbein instruments Clocks in art Torquetum ambassadors |