Called Churchill's Scientists, it opens on 23rd January and tells the story of how Winston's creative thinking-outside-the-box approach to science and to war-time problem-solving gave the critical advantage which ultimately won the war for Britain. He was the first Prime Minister to take on a scientific advisor, and gave scientists unprecedented access to funding. Think bouncing bombs and all that.
This exhibition includes - oh yes - his green velvet onesie. Ideal attire for pulling on in a hurry in an air raid, whilst still maintaining that slightly quirky upper-class authority.
He had a number of versions made in different materials (by Royal Warrant shirtmaker Turnbull and Asser, so none of your saving-up-coupons nonsense for Churchill), and they also proved jolly useful for painting in.
Here's Winnie looking very much like Mr Turner.
The Life Picture Collection/Gett