Smalltime shipspotting. This sweet little tug name is "Kos", and it has been used for icebreaking in Sandefjord, Norway for a number of years. The name connects to KOSmos, the shipping company belonging to Anders Jahre. Very nice little tug. Difficult to get proper info on her, but here is some:
Built at Damen, Netherlands in 1974. Transported to Persian Gulf, to be used as a workboat for the Anders Jahre company tankers.
Brought back to Sandefjord, nowadays used as a workboat/tug. So nice shape!

"Kos"

Tomas