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

An item reported the Polish tug Smok with a gross register tonnage of 1.057 tons, a horsepower of 750 hp, built in1937 and as homeport Gdynia, Poland.

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