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
Gabriel Perelle Gabriel Perelle Gabriel Perelle (born 1604 in Vernon, Eure, died 1677 in Paris) was a French draftsman and printmaker of topographic views and landscapes. A pupil of Simon Vouet, Perelle specialized in classical landscapes not dissimilar to those of Francisque Millet, although more obviously decorative. He founded an etching workshop, and his sons Nicolas and Adam assisted him. Perelle was also a pupil of Daniel Rabel and produced several hundred engravings both from his own drawings and from those of his competitors Israël Silvestre, Paul Bril, Jacques Callot, Michel Corneille the Elder, Jan Asselijn, Jacques Fouquières, Cornelis Poelenburg, and Sébastien