Bonhams via Bloomberg
A white jade seal used by the Emperor Qianlong. It was used to make impressions in the corners of his artworks. Carved with the inscription ``Self-Strengthening Never Ceases,'' was estimated to fetch between 2 million pounds and 3 million pounds at the Nov. 11 auction of Chinese art held by Bonhams during the Asian Art in London event. It sold for 2.7 million pounds including fees.