To those who met them in Japanese-occupied Manchukuo in 1935, the Swiss businessman Charles Emile Martin and his American partner, Cy Oggins, must have seemed an enigmatic pair. Oggins was a distinguished-looking man with craggy features, well-made suits, and a penchant for silver-topped walking sticks. He seemed to know a great deal about Oriental antiquities, and sometimes described himself as an art dealer. Martin was more discreet, preferring plain neckties and gabardine overcoats, though his wife Elsa was fond of elegant handbags and furs. Both men were polyglots, with a wide if vague