Sydney Harbour, Rozelle Bay. 20 February 2013
See Google Earth 33°52'14.93" S 151°10'33.08" E

RHUMB MELBA
Marine Traffic data :
Ship Type: Tug ... Length x Breadth: 16 m X 6 m
Speed recorded (Max / Average): 10.7 / 9.1 knots
Flag: Australia [AU] ... Call Sign: VJN4111
IMO: 0, MMSI: 503723900
Owner web site data with drawings http://media.wix.com/ugd//97076e_1d2e1590d5cba49fac9a4b48a5973f84.pdf

MOLLY GRACE IMO number : 9652870
Call Sign : VHEZ ... MMSI : 503678200
Gross tonnage : 275 (since 01/05/2012)
Type of ship : Tug (since 01/05/2012) ... Year of build : 2012
Flag : Australia (since 01/10/2012)
BR_Reef advises : Owned since 11/2012 by Orion Maritime Pty Ltd, (PoR) Fremantle, and managed by Polaris.