Price : $17,000,000+
the highest price for a work of art ever sold in Scandinavia!
Possibly the world's most expensive antique... An Olyphant is a hunting - or battle horn made of carved ancient ivory. It was produced during the 11th century A.D. and only six copies with the same ornament group are known to the world.
Chippendale antique secretary
Price : $12,100,000
originally made by the Goddard-Townsend family of cabinet-makers. Estimates are that no more than 7 were ever made. A very similar piece (a Nicholas Brown antique secretary) made around 1760 sold at a Christie's auction
source: wikipedia & antique-antiques.com