During World War II, the British Empire sought to keep all subject’s eyes on the prize. So millions of posters reading, “Keep Calm and Carry On” were printed, in hopes of keeping everyone on task during air raids. Though never used – they are now historical and reproduced. A great British reseller, Pedlar’s Webstore, is now selling them online. Poster $150 with Frame BUY or Doormat for $700 BUY .