An auction in New York today is almost certain to make the celebrated artist a record-breaker. But, overshadowing what could be a $60m sale, are questions about works that have allegedly disappeared An auction in New York today is almost certain to make the celebrated artist a record-breaker. But, overshadowing what could be a $60m sale, are questions about works that have allegedly disappeared T his may well be Frida Kahlo’s biggest year yet. There’s the recent opening of a museum in Mexico