PD's - just going backwards on previous comments
First 100,000 tonne bulk carrier vessel was built in Kobe Japan in 1966
Vessel name as built was "Chelsea Bridge"
Owners Ropner Shipping Company
Darlington [London] UK -
On completion she was chartered to

& first sailed as "Sig Silver" -
port of registry - London
In 1968, the Australian BHP took over the charter of the vessel & she
was renamed Iron Sirius, but maintained
the port of registry as London & naturally her stern was emblazoned with
IRON SIRIUS - LONDON
Derek