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This clock, rediscovered on the Island of Nova Zembla (modern day Russia) and now on display in the Amsterdam Rijksmuseum, proofs to be of fifteenth century gothic origin, both in style and type of construction, with its retaining buttress like shaped corner posts, peg-alarumdial, balance wheel and count wheel similar to those described in the Almanus Manuscript of 1480 from the Augsburg City Library, very skillfully transcribed by John Leopold. (click to enlarge) Th Barentz clock the aeliest known domestic Dutch clocl.

(Rijksmuseum Amsterdam) A portrait of a gentleman from Burgundy by a follower of Rogier van der Weyden from c.

in Zaandam (with its quintessential representative survey of Dutch clock history). The Utrecht collection is splendidly described by Dr Jan Jaap Haspels (1994) and the one from Zaandam by Prof C. Furthermore, important Dutch clocks can be found in foreign museum collections like the Metropolitan Museum of Art in New York, The Paris Louvre or German museums in Dresden, Kassel, Munich, Stuttgart and Wuppertal.

For the Schoonhoven collection only a poorly illustrated catalogue exists by G. There are of course some Dutch horological masterpieces in London, in the Science Museum, the British Museum (Ilbert Collection), The V&A and Museum of the Clockmakers' Company at the Guildhall.

Coster worked under the directions of the outstanding homo universalis of seventeenth century Dutch science with the guttural name Christaan Huygens, astronomer, mathematician, physicist and optical scientist.

Strangely enough, in contrast to the English, the general Dutch public is completely unaware of the international scientific significance of this inspiring genius.

Dutch turret clocks are documented as early as 1367 in Maastricht in the most southern province of Limburg, right at the border of both modern day Belgium and Germany.

However the document preserved in the British Library proofs the international claim to fame of Dutch clockmaker-blacksmiths even by royal standards.May be we must leave our romanticized preconception of 'eureca-like', out of the blue inventions by solitary hermits gazing at swinging candelabras.To me it seems that Huygens was much more of a modern scientist.(click to enlarge) An example of a 'Hague'spring wall clock by Salomon Coster, c. Unfortunately, amongst horologists I still encounter anything but consensus, just as Huygens must have experienced, introducing as his original ideas, his inventions and mechanical improvements, like the construction of the pendulum clock, his endless rope, the balance spring, the remontoir or his equation and maritime timekeepers.There were the claims by rivals as Simon Douw of Rotterdam and contemporary Galileo followers concerning his pendulum system or by the French Abb de Hautefeuille and the English inventor Dr Robert Hooke concerning the invention of the balance spring.

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