Optimists Orchestra from Sofia, Bulgaria.
Оптимисты (2)
Albums Vinyl 1958 Poland
10", LP, Album, Mono
Singles & EPs Vinyl 1963 Romania
7", 45 RPM, Mono
Singles & EPs Shellac Romania
10", 78 RPM, Reissue
Emil Dimitrov
Singles & EPs Vinyl Bulgaria
7", 33 ⅓ RPM
