A CHINESE CELADON JADE ‘DRAGON’ SEAL the square seal surmounted by a pair of addorsed dragons each with bulging eyes and gaping jaws the two scaly bodies crouching back on their haunches and pierced through the centre the face carved with four characters ‘si zhi shu wu’ the stone of pale olive-green tone 7.7cm wide Provenance: Swiss Private Collection of Chinese Jades: sold for the benefit of Mission Bambini. See lot 23 for further information on the charity.