A mix-up in prices left red faces at the RM Sotheby's auction of the 1939 Porsche Type 64. Courtesy of RM Sotheby's
A mix-up in prices left red faces at the RM Sotheby's auction of the 1939 Porsche Type 64. Courtesy of RM Sotheby's

Auction slip-up sees Dh73m 1939 'Porsche' fail to sell