and here we see a squad of soldiers firing the Vickers Mk 1 

the Vickers Mk 1

No information on this picture, perhaps of Battle of Britain. We have two alternatives to the caption:
1. A Spitfire about to give the “coup de grâce” for its prey, an He 111.
2. A Spitfire respectfully waiting for its wounded prey (a He 111) to give the fatal plunge down into the sea.

Hunter 

Trio of South African corporals hailing from Bechuanaland who are serving with the British 8th Army in the campaign to oust Axis forces from Italy.