Would have been about 1984, Manila to I think LGW but may have been AMS (alzheimers starting!)on Philippine Airlines, a 747. Myself and a colleague were upgraded from econ, as were a number of pax…what I do recall is that everyone in business was European. It was not a non stop, we had a technical stop as they called it in those days in Bahrain. The one thing that sticks in my mind is the size of the seat, compared to economy it was huge and most comfortable.