IRONSIDER was built by Richard Dunston at Hessle in 1967, YN 849
1967: Lawson-Batey Tugs
1967: Tyne Tugs - charter
1986: Tyne & Wear Tugs - charter
1992: Hellenic Tugs, Greece; renamed MEGALOCHARI XII
2008: Tugs Chatzigavriil Maritime Co, Alexandroupolis; renamed ASTERI
Still in service