If you’ve ever heard Bletchley Park referred to as Station X, as many have, you may be interested to learn that it actually never had that name. Station X was in fact an MI6 communications facility based in a small room in the water tower of the mansion. The ‘X’ simply refers to the fact it was the tenth station in a series. Station X permitted communication across the world with MI6 spies, masquerading as passport officials in British embassies. However, upon learning of Germany’s techniques for detecting the source of radio signals, Station X was moved away from Bletchley Park before war broke out.The room still exists, as does much of the original equipment. Last week I was very privileged to get a look inside. The photos show one of the original radios which we still have, the room itself (which staffed six) and me prancing about, although I was excited to handle a real ‘red sheet’, on which interceptors at Y-stations would write down Enigma cyphertext as they listened to German morse code. As a tour guide I would love nothing more that to take visitors to see it but sadly ‘health and safety’ and a logistical nightmare prevent it. It remains one of Bletchley’s little secrets.