By the time this photo was taken, the ship belonged to the owner of JCB.
Attached is a rough sketch of a "Key Plan" for this type of ship built at Doxfords and Laings. It is a visual aid used by the various shipyard departments, each in their own way, to record the progress of the assembly of the prefabricated units that the ship was built up of.
AE = AFT END, AH = AFTER (DECK) HOUSE, BHD = BULKHEAD, DB = DOUBLE BOTTOM, DP = DERRICK POST, DH = DECKHOUSE, ER = ENGINE ROOM, FE = FOR END, FN = FUNNEL, MT = MAST, R&S = RADIO & SIGNAL MAST, SD = SECOND DECK, SS = SIDE SHELL, UD = UPPER DECK
Crestbank. Yard number 07, Keel laid 13.09.1977; Float across (when preceding ship in dock was floated out), 17.12.77; Float out 60.04.78, Completion 02.05.78. other names: Tamathai, Northman. Broken up 2006 after a long lay up.
Doxford 670J6 engine, number 456
Since posting this elsewhere, It has been drawn to my attention that I have no3 hold as no3 AND no 4hold. My typing error entirely.