Fields & Rossini in a Pathé film demonstrating ‘The Sound Ribbon’, a forerunner of audio tape 1934

Published 06/01/2014 at 623 × 417 in ‘Fields & Rossini’

Fields & Rossini in a Pathé film demonstrating ‘The Sound Ribbon’, a forerunner of audio tape 1934
http://www.britishpathe.com/video/the-sound-ribbon