07 February (Germany, Democratic Republic ) within release Telephone sets through the ages goes into circulation Se-tenant Se-tenant of old phones face value 50 East German pfennig
Se-tenant Se-tenant of old phones in catalogues | |
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Michel: | Mi: DD WZd782 |
Se-tenant is square format.
Also in the issue Telephone sets through the ages:
Se-tenant Se-tenant of old phones it reflects the thematic directions:
A telephone, colloquially referred to as a phone, is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be easily heard directly. A telephone converts sound, typically and most efficiently the human voice, into electronic signals that are transmitted via cables and other communication channels to another telephone which reproduces the sound to the receiving user. The term is derived from Ancient Greek: τῆλε, romanized: tēle, lit. 'far' and φωνή (phōnē, voice), together meaning distant voice.