The monthly salaries of sailors in the Polish navy according to a CIA report dated 8 October 1951

An item reported that the monthly salary of a Polish naval sailor was 6 sloty, more experienced sailors earned 9, mates 15 and a boatswain’s mate 8 zloty.

Source
The report was published on www.archive.org, document number CIA-RDP82-00457R008900070011-9