#TodayInTheMuseum The Frenophone a clockwork powered amplifier for a telephone receiver 1922

#TodayInTheMuseum The Frenophone a clockwork powered amplifier for a telephone receiver 1922

#TodayInTheMuseum The Frenophone a clockwork powered amplifier for a telephone receiver 1922

#TodayInTheMuseum The Frenophone a clockwork powered amplifier for a telephone receiver 1922

Posted 2 years ago & Filed under todayinthemuseum, View high resolution

About:

Following: