Any further information on this picture we have in our possession would be great.
From what I can tell, it was taken on the 14th April 1941 (coding 14441).
It is also the first picture I’ve seen of Churchill with his wife; the fellow in the bowler hat is a mayor or similar. You can see that Churchill has a gas mask over his shoulder, and is raising his hat with a cane (badly framed photo misses this)