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

An item reported the Polish tug Feliks with a gross register tonnage of 149 tons, a horsepower of 500 hp, built in 1951 and as homeport Szczecin, Poland.

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