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| Dictaphone, erasing unit. Belonged to Baladi. About 1937. |
The recording unit of Dictaphone was normally coupled with an erasing unit, used to level the surface of the engraved cylinders making them usable for another recording. |
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| Dictaphone, erasing unit. Belonged to Baladi. About 1937. |
The recording unit of Dictaphone was normally coupled with an erasing unit, used to level the surface of the engraved cylinders making them usable for another recording. |