Polish tug Zeromski of the Wroclaw branch of the Polish Central Administration of the Inland Waterways according to a CIA report dated 21 October 1955

An item reported that the Polish Central Administration of the Inland Waterways resorted under the Polish Ministry of Shipping. There were branch offices at Wroclaw (former Breslau), Szczecin (former Stettin), Bydgoszcz, Gdansk (former Danzig), Warsaw and Krakow. The Wroclaw branch office at Ulica Kleczkowska 50 directed by Orlowski operated the tug Zeromski of the passenger type and with a horsepower of 350 hp between Wroclaw and Nowa Sol (Neusalz)

Source
The report was published on www.archive.org, document number CIA-RDP80-00810A007900950006-8