The anthropologist Keith Hart once told me a story about his brother, who in the ’50s was a British soldier stationed in Hong Kong. Soldiers used to pay their bar tabs by writing checks on accounts back in England. Local merchants would often simply endorse them over to each other and pass them around as currency: once, he saw one of his own checks, written six months before, on the counter of a local vendor covered with about forty different tiny inscriptions in Chinese.
