Model of an Optical Telegraph, anonymous, c. 1798 - c. 1800
wood, brass and rope, h 58.7cm × w 27.8cm × d 18cm Catalogue entry
Model of an Optical Telegraph, anonymous, c. 1798 - c. 1800
wood, brass and rope, h 58.7cm × w 27.8cm × d 18cm Catalogue entry