British Airways Union Jack promotional airline necklace

A scarce circa 1970's 'British Airways promotional necklace'; silver plated example bearing BA logo in red, white and blue painted enamel, complete with original chain with spring catch, this now loose and consequently unreliable to wear. Good condition.
Size 23 x 18mm.

British Airways formed in 1974 from the merger of
'British Overseas Airways Corporation' (BOAC) and 'British European Airways' (BEA).