Scanned from a 1948 print of the 1930 original photo
Armstrong Whitworth A.W.154 Argosy Mk.I, G-EBLF, "City of Glasgow" which first flew in 1926 and was retired in 1934. The last Argosy was retired in 1936
The photo was taken on a "Tea Flight" over London, for £2:2:0 you got a half hour sightseeing flight over London with tea being served.
Photo by English photographer Charles E Brown (1896 - 1982)