Polskie Nagrania

Formerly Zakład Nagrań Dźwiękowych (1953-1955) was renamed as Polskie Nagrania in 1955.
Merged with Warszawska Fabryka Płyt Gramofonowych „Muza” in 1956.

As a label - use for releases before 1957 only.
In other cases use only for company credits.

For later releases, with both „Muza & Polskie Nagrania Warszawa”, as a label please use Polskie Nagrania Muza.