The Interkosmos program of cooperation in space was decided by treaty on July, 13 1976. The space program was part of the work of the Council of Mutual Economic Cooperation (COMECOM). The Interkosmos space program finish with the dissolution of COMECOM on 1990.
Flag of Interkosmos space program (USSR and socialist countries, 1970ths-1980ths): white field with logo. Andreas Herzfeld told me he saw these flags in German Democratic Republic (DDR) in 1970ths.
The official logo had a cyrillic inscription of "INTERKOSMOS".
Considering all missions and the main/official languages of the participant countries there were six possible designs. I wonder which more of these were actually created and used on flags.
In East Germany was practice, that foreign inscription were translated. The German version of the INTERKOSMOS-flag was hoisted at the return parade of the first German kosmonaut (astronaut) Siegmund Jähn on October, 4 1978. (The flag of the mutual german and soviet space mission Sojus 31 / Союз 31 was also hoisted next to the INTERKOSMOS-flag during the return parade in East Berlin.)
The INTERKOSMOS flags in the German Democratic Republic were only political promotion material. The cloths know Andreas Herzfeld from Leipzig and I from Berlin. However, the flags were never official.
The logo existed in german, russian and hungarian variants. But I’m not sure about flags.
|Mission: Союз…||Language||Inscription on logo/flag||Use|
|(all: 1978-1988)||Russian||ИНТЕРКОСМОС||logo and flag official|
|28 (1978)||Czech||INTERKOSMOS||logo and flag used|
in East Germany
|36 (1980)||Hungarian||INTERKOZMOSZ||logo used in Hungary|
|37 (1980)||Vietnamese||INTERCOSMOS||logo and flag use|