sentences:  Salomon Coster
  
  Salomon Coster (c. 1620–1659) was a Dutch clockmaker of the Hague, who in 1657 was the first to make a pendulum clock, which had been invented by Christiaan Huygens (1629-1695).Coster's earliest pendulum clocks were signed "Samuel Coster Haghe met privilege", indicating that he had been authorized by the inventor to make such clocks.