Nahlin at Blohm & Voss, Hamburg, 28.03.2008

Built by John Brown & Co., Clydebank, United Kingdom
Yard No.: 533
Design: G.L. Watson & Company
Completed: 31.07.1930
First name: Nahlin (1930-1948)
Subsequent names:
- Luceafarul (1948-1999?)
- Libertatea (1999?)
- Nahlin (since 02.1999)
Port of registry: Glasgow, United Kingdom

Gt/Nt: 1.356 / 406
L/B/D (m): 90,22 / 10,97 / 4,50
Speed: 17 knots

Registered owner, manager & operator:
Blue Bay Marine, Douglas, Isle of Man

For further info see the links in Arne's comment!
Thanks again to Arne (Nordmark71) for identification! :-)