that his alleged contact in Glasgow “would do anything for a litre of wine”,

unaware the UK did not use the metric system. His reports were intercepted

by the British Ultra communications interceptions programme, and seemed

so credible that MI5 launched a full-scale hunt for the spy.

In February 1942, either he or his wife (accounts differ) approached the

United States after it had entered the war, contacting U.S. Navy Lieutenant

Patrick Demorest in the naval attache’s ofce in Lisbon, who recognised