Telescopium: sive Ars perficiendi novum illud Galilaei visorium instrumentum ad sydera in tres partes divisa.
Frankfurt: Paul Jacobi for Luca Jennis, 1618. First edition, extremely rare, of “the first book about the telescope, its invention and use” (Zinner). Written by the Milanese scholar Girolamo Sirtori in 1612, only four years after the telescope was invented, it contained a complete set of instructions and diagrams for..... More
Item #4706