Monarch to Suriname
It is a long while ago but my recollection is that Monarch had a contract with the Dutch government to transport staff and families to and from Suriname (formerly Dutch Guiana ) as until 1972 it was technically part of the Netherlands. Flights originated in Rotterdam and I think tech stopped at Dakar. Their Britannias went some fair distances including the Australia contract. Somewhere on the web is a photo of one at San Francisco.