Series Supraphon Diskotéka Stereo 
updated over 4 years ago
Supraphon “Diskotéka ✽ stereo” numbered series of 7-inch singles, released from 1977 until ca. 1990. Apparently 112 records were released in total.
(Note that some of the records may have also retailed in other random preprinted neutral Supraphon picture sleeves, unnumbered.)