With this historically faithful cardboard replica, you can immediately relive the great research achievement of Galilei, which he has achieved despite the modest optical performance of this telescope according to today's standards. The kit corresponds in size and optical properties to the telescope of that time and is based on the only telescope that can be attributed to Galilei, the oldest telescope in the world: a leather covered and gold embossed design for Cosimo II de Medici, which is now in Florence shown in Florence d.