Conversa-Phone
Настоящее имя: Conversa-Phone
U.S. label of mostly educational content.
For company credits such as © / Produced By (Prod. by), Manufactured / Distributed by can be assigned to either:
Conversa-Phone Institute, or Conversa-Phone Institute, Inc.
There is also the EM Series to be added on some releases if mentioned
132 W. 32d St. N.Y. 1, N.Y. [defunct, September 1963 Billboard ad]