"Demonstration Breguet Telegraph, For School. 1880"
Rare set of telegraph Breguet (unbranded) for amphitheater dating from the second half of the nineteenth century. It consists of a transmitter and a receiver. This educational telecommunication instrument comes from the College Ste Barbe in Paris, whose collections of scientific instruments were sold at Drouot 20 years ago. The dials are made of zinc covered with printed paper. Very artisanal but professional production. Large instruments (the siphon gives scale) designed to be seen from a distance.