An 1847 letter to wine merchants in Bordeaux, franked with the 1d and 2d first issues of Mauritius was bought by an anonymous buyer in less than a minute for CHF6,123,750 ($4,075,165 / £2,811,639) at a sale conducted by Geneva-based auctioneer David Feldman (Ireland) at the Hotel International in Zürich, Switzerland on 3 November 1993.