Join the Army Air Service RAF in flight over the Lincolnshire

in flight over the Lincolnshire countryside on 14 April 1942

whole: the image is positioned in the right half

the 'BALMACAAN'

KeepMum She’s Not so Dumb is typical of Second World War British propaganda attempts to instil caution in the public through humorous

and set against a black background

Join the Army Air Service RAF in flight over the Lincolnshirewhole: the image covers the whole, with black text integrated and occupying the lower third. image: in the foreground an American bald eagle swoops upon a black German Imperial eagle. In the background seven aircraft fly towards anorange explosion or sunbursttext: JOIN THEARMY AIR SERVICEBE AN AMERICAN EAGLEConsult your local Draft Board, read the illustrated booklet at any recruiting office, or write to the Chief Signal Officer of the Army,Washington