Unique Lindbergh Hour Angle from 1931. Designed by Charles - TopicsExpress



          

Unique Lindbergh Hour Angle from 1931. Designed by Charles Lindbergh in collaboration with Longines - the hour angle was a life saving navigational tool to calculate and convert time equations into longitude - essential in the pioneering days of aviation. Only a handful survive and this first version sterling silver flawless enamel dial piece bears case No.1 of series 1 with one off factory engraving.
Posted on: Thu, 24 Jul 2014 10:58:25 +0000

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