But of all the central bankers in Europe, Montagu Norman was the most relieved. The crash had arrived just in time to rescue sterling. Convinced that it had been the rise in British interest rates on September 26 that finally burst the bubble, he started claiming credit for the collapse. So relaxed was he about the events on Wall Street, that on the morning of October 29, Black Tuesday, while the financial world was falling apart, he kept his usual appointment for a sitting with artist Augustus John, who had been commissioned by the Bank of England to paint his portrait.