Tug boat “HERMES” at the Neorion Shipyards of Syros Island (Greece) on April, 02 2014. Right behind her the platform "DANI" while the ferry on the background is "SUPERFAST XI". The IMO Number of the tug boat is unavailable however, hereby you can find the ship’s particulars according to Aleksi Lindström as provided in a picture of his taken in 2006:

Length: 17.02 m
Breadth: 4.9 m
Depth: 2.4 m
Draught: 2.2 m
GT: 46
NT: 18
Built: 1974 Neorion Shipyards, Syros (Hull No. 05)
Owner: Neorion Shipyards, Syros
Call Sign: SV4203
Homeport: Syros
Engine Builders: Caterpillar Tractor Co.
Horse Power: 460
Speed: 11 kn
Electrical Generators & Output: 1x12KW 200V dc