Queen visits Bletchley Park

1. The Queen visits Bletchley Park

Queen Elizabeth II accompanied by The Duke of Edinburgh unveils an 8ft memorial which carries the words "We Also Served" during a visit to Bletchley Park, Milton Keynes.

2. The Queen visits Bletchley Park

Queen Elizabeth II speaks to code breaker Jerry Roberts during a visit to Bletchley Park, Milton Keynes.

3. The Queen visits Bletchley Park

Queen Elizabeth II presses the button to start the Enigma code breaking machine watched by The Duke of Edinburgh and wartime operator Ruth Bourne during a visit to Bletchley Park, Milton Keynes.

4. The Queen visits Bletchley Park

Queen Elizabeth II meets wartime cryptologists Oliver and Sheila Stone during a visit to Bletchley Park, Milton Keynes.

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