Československý Jazz
Found this series while researching Karel Velebny (1931-89) Czech band leader, vibraphonist, saxophonist, pianist, composer, actor, educator -- and composer of the soundtrack to the Weston Woods / Children's Circle classic short film Moon Man (1981).
Československý Jazz was a Supraphon annual LP series released between 1960 and 1967. See also parallel export series for Artia: Jazz In Czechoslovakia.
