They are in very good shap and were never used.

Department of the Environment Crown copyright. Printed in England for HMSO by Willsons Printers [Leicester] Ltd.

Descriptions, starting at left going clockwise;

1. Tower of London, the Bell and Byward Towers
2. Tower of London and River Thames from south west
3. Tower of London. General view
4. Tower of London. Yeoman Warders on Ceremonial Church Parade
5. Tower of London, Tower Bridge from the Wharf