Unusual clear acetate 'plaque' believed to have been used in RAF Filter and Sector Operations Rooms during the Battle of Britain and beyond to display the name allocated to a specific enemy raid. Approximately 16 x 3.8cm marked 'BOISTER' in black. Came in with other similar plaques and operations room pieces. A fantastic opportunity to create a small operations room display. Good condition. Stock code M26672.
NB. Map not included.