Seven specimens of "variable area" sound film (each about 6" long) made by R.C.A. Photophone process
- Made:
- 1934
Seven specimens of "variable area" sound film (each about 6" long) made by R.C.A. Photophone process, 1934
Details
- Category:
- Sound Reproduction
- Object Number:
- 1934-156
- type:
- specimen
- credit:
- R.C.A. Photophone Ltd.