I have about 5 or 6 (can't remember been in the loft for years) 12 inch 78rpm records. They are single sided with hand written labels. They are recordings of Myra Hess and of Muir Mathieson made I believe during lunch-time concerts held during the second world war at the Wigmore Hall. The question is do these have any special historical significance or value attached to them. Any thoughts would be appreciated. Pete.