It’s a pretty good representation of the conversation, although “the “Keep Calm” version never left the warehouses.”, as it was distributed around the country, just never officially sanctioned for release on the billboards. Also clarify that A.P. Waterfield definitely provided the text for ‘Your Courage’ poster, but it’s not clear who wrote the words for this particular poster. The Ministry of Information ‘design rules’ were for the series of posters, not just ‘Keep Calm’.
Mass Communications Academic, @MMUBS. British Home Front Propaganda posters as researched for a PhD completed 2004. In 1997, unwittingly wrote the first history of the Keep Calm and Carry On poster, which she now follows with interest.