“From the wintry sky to the east appeared 16 Lightnings of 56 and 111 Sqns, Wattisham, and 19 and 92 Sqns, Leconfield, led by Wg Cdr A. F. Jenkins. In four boxes of four in long line astern they came in a shallow dive to 500ft. the thunder of their passage sounding the final deep notes of the day’s poignant music.”
8 x F.2's from 19/92 and probably 8 x F.1A's from 56/111.
111 were in the process of converting to F.3's around this time so, it's possible some of the 4 x 111 machines could have been F.3's, but F.1A's more likely I would think.