Other big names in Reijtenbagh's portfolio: Blackstone Real Estate Partners V and Blackstone Real Estate Partners VI, as well as Carlyle Asia Partners II, Carlyle Asia Growth Partners III and other Carlyle funds focused on Japan and Europe.

FORBES: Private Equity

His collection was thought to contain tens of thousands of first-day covers, including stamps marking England's 1966 World Cup win, the Silver Jubilee of George V and the silver wedding of George VI.

BBC: Norfolk stamp collector repays debt over church thefts

But also the working conditions are much better and there's a far greater array of different scientific experiments now possible at Halley VI compared to Halley V.

BBC: Halley Antarctic research station up and running