Within its walls are Scotland’s treasures, priceless objects from the distant past that tell the nation’s story and shine a light on the ancient world, from the Lewis Chessmen to Roman relics, Egyptian mummies and Viking hoards. Now, the historic riches held by the National Museum of Scotland are to be boosted by a new ‘Covid collection’ which curators hope will include supermarket signs warning of toilet roll shortages and posters urging tourists to stay away from beauty spots. Even if most people living through the Covid-19 crisis may prefer to forget it, the idea is to give future generations the opportunity to see how it has shaped and changed our lives.