Hungarian the Mahart steam tug Becke sighted on the Danube according to a CIA report dated 29 March 1955

An item dated 6 December 1954 reported that the Mahart (Magyar Hajozasi Reszvenytarsasag) steam tug Becke off Vienna, Austria was sighted coming from Komarno towing empty Soviet DDSG barges. On 7 January 1955 was she sighted off Lobau, Vienna, Austria  towing tankers each loaded with 800 ton crude oil towards Feusidae.

Source
The report was published on www.archive.org, document number CIA-RDP80-00810A006200800008-0