From the RAF Merryfield "At Home" day souvenir programme of 18 September 1954 (Price 1/- !!):
"Flying Programme. It is hoped that the Flying Display will include the following:-
(etc etc)
Breaking the sound barrier by a Sabre of Fighter Command
(etc etc)"
Them were't days - and there were 16 different types of RAF aeroplanes in the static aircraft display!