Henry Cass Demonstration Film
- 1923
- 5m
Demonstration film of Henry Cass filmed by Lee DeForest in his Phonofilm sound-on-film system on 12 April 1923 and premiered at the Engineers Society Auditorium in New York City on 15 April ... Read allDemonstration film of Henry Cass filmed by Lee DeForest in his Phonofilm sound-on-film system on 12 April 1923 and premiered at the Engineers Society Auditorium in New York City on 15 April 1923.Demonstration film of Henry Cass filmed by Lee DeForest in his Phonofilm sound-on-film system on 12 April 1923 and premiered at the Engineers Society Auditorium in New York City on 15 April 1923.