Burning-lens, Benedetto Bregans (lens), Francesco Spighi, Gaspero Mazzeranghi, (mounting), 1690 (lens), 1767 (mounting), Medici Collections (lens); Lorraine Collections (mounting), Institute and Museum of the History of Science (inv. 2545, 2710 bis), Flor
© Institute and Museum of the History of Science / Franca Principe
Last update 04/gen/2008