It is interesting to compare the fate of Nottingham lace production with that of Calais which was the other important centre of high-quality, machine-made European lace. While the know-how and skills in Nottingham are on the verge of being lost completely, the French have given the Calais-Caudry name protected status by awarding it the first Indication Géographique des Hauts-de-France and is determined to preserve its heritage. Calais is now the self-styled "city of lace and fashion" and has a lace museum in a former factory. On one wall is this 2020 mural - based on a 1894 design - by NeSpoon, a Polish artist who has done many lace murals around the world inspired by local traditions and yet, bafflingly, there isn't one in Nottingham.