Polish tug Dzik according to a CIA report dated 20 May 1954

An item reported the Polish tug Dzik with a gross register tonnage of 138 tons, a horsepower of 500 hp, built in 1944 and as homeport Gdynia, Poland.

Source
The report was published on www.archive.org, document number CIA-RDP80-00810A004001050003-8