Peter Stanton is cleaning the windscreen then L to R: Cpl Abrahams, Jock Watt and Don Marston.   The hangars do not look like RAF Jever so I presume it is at RAF Geilenkirchen sometime before it was declared Cat3R on 4Nov57.   The aircraft is Swift FR.5 XD916 E which arrived on 2 Sqn on Fri 24Feb56, was Cat 3R 4Nov57-1Feb58 and Cat 3R 3Jul58-9Sep58, eventually being declared Cat 4(R) damaged and passed to 23MU on Tue 30Dec58.   (Thanks to Jack Goldthorpe.)