Blue Penny
From Wikipedia
Blue Penny Museum Caudan Waterfront Port Louis, Mauritius In November, 2001, The Mauritius Commercial Bank has opened a museum known as the Blue Penny Museum . This is the first philatelic museum in the country
Known as the 1d Post Office and 2d Post Office, these are the first issues of Mauritius. These two stamps fetched US$2 million on November 10, 1993 at an auction in Switzerland. The successful bidder was a consortium of Mauritian companies headed by The Mauritius Commercial Bank, comprising Air Mauritius, Beachcomber, Currimjee Jeewanjee, Espitalier-Noël, Floréal, General Construction, Happy World, Harel, IBL, J.Kalachand, Mauritius Breweries, Rogers, Sun Resort, Swan, and West East