British Airways utilized their Trident Three aircraft well into the late 1980's, particularly on their Shuttle Service to Manchester and Edinburgh from London's Heathrow Airport. The smaller Trident Two was not in service for as long.
Here is a relatively hard to find version of a British Airways Trident Two Safety Instructions card. This card was not specifically dated, but best guesstimate is early 1980's. Form F399 (1st). Printed in England. Please Click On Virtual Museum Image For A Closer Look! This item is for display only and not available for sale.