The Soviet SDGP motor tug Taman active on the Danube according to a CIA report dated 29 June 1955

An item dated 17 May 1955 reported the Soviet (Sovietskoye Dunaisk oye Gosudarstvennoye Parokhodstvo) SDGP motor tug Taman on the Danube off DKM 1856 while towing with petrol loaded tankers towards Bratislava.

Source
The report was published on www.archive.org, document number CIA-RDP80-00810A007200560007-7