Chris, I believe photographed on 23rd August 1975 on a voyage from Bombay (sailed July 14th), Manchester (arrived August 7th, sailed 16th) and Glasgow (arrived August 17th sailed 21st), on charter to a British liner company, probably Anchor Line. She sailed from Cardiff on September 2nd bound for Middlesbrough to load an outward cargo, arriving on 5th and sailing on the 12th September.

I hope the above is of interest. The photo was presumably by John Wiltshire.