20 Frith Street been presented to the museum of Görlitz by Baron de Gersdorf. (Baron von Gersdorff from Saxony, possibly?). Gersdorf authenticated the first ascent of Mont Blanc by Jacques Balmat and physician Michel-Gabriel Paccard in 1786. Exchaquet was also the director of mines and foundries at Servoz in Haut-Faucigny, where attempts were made to emulate the success of the English steel-makers who, however, were using the very best imported Swedish Oregrounds iron. In 1816 Troye co-authored with one S. Glover "A Description of the Inundation of the Valley of Bagnes in Swisserland". Troye published an account of Mont Blanc and his models
Ange-Jacques Gabriel Ange-Jacques Gabriel Ange-Jacques Gabriel (23 October 1698 – 4 January 1782) was the principal architect of King Louis XV of France. His major works included the Place de la Concorde, the École Militaire, and the Petit Trianon and opera theater at the Palace of Versailles. His style was a careful balance between French Baroque architecture and French neoclassicism. Ange-Jacques Gabriel was born on October 23, 1698 to a famous Parisian family of architects, and was connected by marriage with another celebrated architect of the time, François Mansart. His grandfather was an architect, and his father, Jacques Gabriel (1667-1742) received the