Telegrafia "Public Reporter"

Company history taken from the introduction of a detailed online article published by The East Bohemia Museum in Pardubice and linked below:

"Telegrafia, the full name of which is correctly "Telegrafia, Czechoslovak Telephone and Telegraph Factory as" was founded on the initiative of the then Ministry of Posts and Telegraphs on October 18, 1919, almost the jubilee of the founding of Czechoslovakia. Production, focused on the development and production of low-current electrical devices, was from the beginning considered strategically important for the interests of the republic, which is why Telegrafia was established as a joint-stock company with a majority state share, financed by the Živnostenská banka."

• Link 1: Telegrafia - Tesla's grandmother
• Link 2: Telegrafia is leaving, Tesla is coming

This is a large carbon microphone with a bakelite body and a pressed and chrome plated front grill, supported by four springs in a metal hoop, typical of similar models from the late 1920s and early 1930s. Sadly our example does not work.

From the Italian "Fund for Studies in the History of Science" website

"This is a 'Public Reporter' model carbon microphone produced by the Czechoslovakian company "Telegrafia" of Prague-Pardubice around 1930. It has a spring-loaded anti-interference suspension and is powered by four 1.5 volt batteries. The "Telegrafia" company was founded in 1919 and moved to Pardubice in 1922-23, remaining there until December 1945, the end of the war and forced collaboration with the German Werrmacht. The microphone weighs 800 grams."

https://www.propamatky.cz/zpravodajstvi/42294-on-line-vystava-odchazi-telegrafia-prichazi-tesla