Brunei's $40 stamp

Last month, on the 1st of August was His Majesty Sultan Haji Hassanal Bolkiah's 40th Anniversary of His coronation. I wrote about the stamps that were issued specially to mark the occasion which you can read here.Together with the set of four 40 cents stamps were two miniature sheets. One contained all the stamps and the other contained a very high valued stamp of $40. At the time of the stamps