The Sword and the Shield: The Mitrokhin Archive and the Secret History of the KGB

The Centre had suspected for some time that its principal source of British diplomatic documents over the last decade, the mercenary agent Francesco Constantini (DUNCAN), had been selling some material to Italian intelligence as well as to the NKVD. It had dramatic confirmation of these suspicions in February 1936, when a British assessment of the Italo-Ethiopian war—purloined by Constantini from the British embassy—was published on the front page of the Giornale d’Italia.⁶¹ On being challenged by Akselrod, Constantini was forced to admit that he had supplied some documents to the Italians, but concealed the large scale on which he had done so. Constantini also admitted in 1936 that he had lost his job in the British embassy, though he apparently omitted that he had been sacked for dishonesty. He tried to reassure Akselrod by telling him that he had a former colleague in the embassy who would continue to supply him with classified documents. The colleague was later identified as Constantini’s brother Secondo (codenamed DUDLEY), who had worked as a servant in the embassy Chancery for the previous twenty years. ⁶²

Secondo Constantini, however, took fewer precautions than his brother Francesco. In January he stole a diamond necklace belonging to the ambassador’s wife from a locked red box (normally used for diplomatic documents rather than jewelery) which was kept in the ambassador’s apartment next to the Chancery. The ambassador, Sir Eric Drummond (soon to become Lord Perth), who had previously dismissed the idea that the British diplomatic documents appearing in the Italian press might have been purloined from his embassy, now began to grasp that embassy security might, after all, require serious attention. Since the Foreign Office had no security officer, it was forced to seek the help of Major Valentine Vivian, the head of SIS counter-intelligence. Vivian modestly disclaimed significant expertise in embassy security but, in view of the even greater lack of expertise in the Foreign Office, agreed to carry out an investigation.⁶³ Once in Rome, he quickly discovered an appalling series of basic lapses. The embassy files, safe and red boxes were all insecure and “it would not be impossible or even difficult for unauthorized persons to spend long periods in the Chancery or Registry rooms.”

Vivian quickly identified Secondo Constantini as the man probably responsible for the theft both of the diamond necklace and of at least some of the documents supplied to Italian intelligence:

S. Constantini… has been employed in the Chancery for twenty-one years. He might, therefore, have been directly or indirectly responsible for any, or all, of the thefts of papers or valuables which have taken place, or are thought to have taken place, from this Mission. He was, I understand, not quite free of suspicion of being himself concerned in a dishonest transaction for which his brother [Francesco], then also a Chancery servant, was dismissed a short time ago. Moreover, though the Diplomatic Staff at the time did not connect him with the matter, I am clear in my own mind that the circumstances of the loss of two copies of the “R” Code from a locked press [filing cabinet] in the Chancery in 1925 point towards S. Constantini, or his brother, or both, as the culprits.⁶⁴

Though Sir Eric Drummond politely welcomed Vivian’s recommendations for improvements in the security of his embassy, he took little action.⁶⁵ In particular, neither he nor most of his staff could credit the charges against Secondo Constantini, whom they regarded as “a sort of friend of the family.”⁶⁶ Instead of being dismissed, agent DUDLEY and his wife were—amazingly—invited to London in May 1937 as the guests of His Majesty’s Government at the coronation of King George VI, as a reward for his long and supposedly faithful service. ⁶⁷