"To work for victory is not to say goodbye to charm". Yardley ran this series of wartime adverts over 1942/3. Each shows a woman engaged in "war work" - driver (?), Wren, factory girl, nurse - and a patriotic message encouraging women to "keep within ourselves the spirit of lightheartedness" and "work hard and let no weariness appear". Do enlarge to read the text in full - it's really quite rousing stuff!
"Let us face the future with held-high heads. And let us always honour the subtle bond between good looks and morale."