2 books for « salmoiraghi angelo »Edit

‎Notice sur un Telemetre destine au Service de L'Artillerie pour la Defense des Cotes. - [WITH AUTHOR*S DEDICATION TO THE DANISH MINISTER OF WAR]‎

‎Milan, Chez L'Auteur, 1881. 8vo. In ccontemporary half cloth with gilt lettering to top of front board. Paper-label pasted on to lower part of spine. Two small paper-labels pasted on to lower part of front free end-paper. Two stamps to title-page. With author's presentation-inscription to the Danish Minister of War: ""A' Son Excellence / Le Ministre de la Guerre / de C M Roi / Hommage de l'Auteur"". Very light miscoloured to lower margin, otherwise a fine copy. 17 pp. + 1 folded plate. ‎

‎Rare first edition of Salmoiraghi's work on Rangefinders (Télémétre). Angelo Salmoiraghi was a student of Ignaz Peter Paul Porro (1801-75) who in the 1860s in Turin opened the ""Officina Filotecnica"" (workshop and school of optics, instrument building and fine mechanics). Salmoiraghi bought his teacher's Milan-based ""Società Filotechnica"" and renamed it to ""Filotecnica Salmoiraghi"". The company still exists today under the name of ""Salmoiraghi & Viganò"".‎

‎GUIDE PRATIQUE DU GEOMETRE MODERNE. LES TACHEOMETRES-CLEPS. DESCRIPTION ET USAGE.‎

‎ Chez L'Auteur, Milan, 1888. In-4, bella legatura in tela editoriale (lievi tracce d'uso al dorso), pp. XVI, (2), 142, (6) e 4 tavole fuori testo piu' volte ripiegate che raffigurano un nuovo teodolite.Il Salmoiraghi, celebre ingegnere e famoso costruttore di strumenti ottici, fu direttore dell'Istituto La Filotecnica fondato da Ignazio Porro costruttore del cleps, strumento descritto all'inizio dell'opera. In buono stato (good copy).‎