Timeless, timely
by abbamoses
This poster, which ought to hang in every kitchen, was created in 1917 as part of an effort to encourage Americans to economize on the Home Front during the First World War. But the advice is good at any time.
I’m not so sure about “Use less wheat,” but with everyone worrying about gluten sensitivities, who can say?
Source: The Kitchn
That Which is Bread 
Other posters from this campaign say that wheat was needed to ship overseas to Allied countries, so Americans were being asked to use less of it at home.