The Soviet steam tug Vol’sk according to a CIA report dated 21 August 1950
An item reported that the Soviet
North-Western Line (Severo-Zapadnoe Parokhodstvo) possessed the steam tug
Vol’sk captain Chagin, active on the Ladoga canals, last time identified on 28
October 1949.
Source
The report was published on www.archive.org, document number CIA-RDP83-00415R005700200002-4