An item reported the Polish icebreaker Posejdon with a gross register tonnage of 436 tons, built in 1884 and as homeport Szcezecin, Poland.
Source
The report was published on www.archive.org, document number CIA-RDP80-00810A004001050003-8
Source
The report was published on www.archive.org, document number CIA-RDP80-00810A004001050003-8