Three late-Seventeenth century Italian telescopes, two signed by Paolo Belletti of Bologna / G.L'E. Turner.
Abstract:
Three Italian late-seventeenth Century telescopes and a stand have been examined in detail. The constructional characteristics are tabulated, and the arrangement of the lenses shown in diagrams. Some preliminary comparisons are made with telescopes produced elsewhere in Europe
Annali dell'Istituto e Museo di storia della scienza di Firenze A. 9, fasc. 1 (1984), p. 41-64