RAF operations room plaque 'T.P.'

Unusual hanging plaque believed to have been used in RAF Filter and Sector Operations Rooms during the Battle of Britain and beyond to display important information relating to an enemy raid.  This relatively crude single-sided tin plaque measures approximately 35 x 25mm, is black, with the lettering 'T.P.' hand-painted in white.  It has two small holes on the top edge for hanging.  Came in with other similar plaques and operations room pieces.  A fantastic opportunity to create a small operations room display.  Three available, all in similar condition.  Priced individually.  Stock code M25719/10/11.

NB. Map not included.