Milton Keynes Philatelic Society is holding a stamp fair at the Church Hall in Bletchley's Queensway on Saturday (May 13).
Former Bletchley Park Post Office Postmaster John Chapman has put together some rather interesting items which will also be on sale on the day.
John will be selling 20 books of Bletchley Park related material, including first Day Covers, stamps and various other items.
And the whole collection of Churchillian Stamps from the Churchill Rooms that were at Bletchley Park from 1995-2013 will be on hand too.
Apex/ Stanley Gibbons will also be at the fair, giving valuations on your own collections.
The event runs between 10am and 4.30pm.