The Henry Sully Clock C
The Clock C by Henry Sully is one of the 12 most important early timekeepers related to the discovery of the Longitude at sea, such as the Harrison clocks.
The Clock C by Henry Sully is one of the 12 most important early timekeepers related to the discovery of the Longitude at sea, such as the Harrison clocks.
Signed : « Henry Sully à Versailles Invenit 1721 et Fecit 1724 ».
Now in The Royal Observatory Greenwich.