Stamp market: a 1 franc vermilion on a letter from 1851 to Baden-Baden for 10,000 euros
The autograph handwritten signatures of Jean-Baptiste Charcot, Paul-Emile Victor, Fridtjof Nansen, Richard Byrd or Adolf Erik Nordenskiöld, scattered in a sale closed on September 1st, are sure to attract the attention of polar postal history enthusiasts.
We haven't written up this one. Le Monde Economie has the full story — the link below goes straight to it.