AN IMPERIAL JADE 'BA ZHENG MAO NIAN ZHI BAO' SEAL
QING DYNASTY, QIANLONG PERIOD
of square form, the seal surmounted by a pair of well-carved addorsed dragons, each with bulging eyes, flaring nostrils, gaping jaws and bared sharp teeth, the two scaled bodies crouching back on their haunches and pierced through the center with an aperture, the square seal deeply and crisply carved with the characters Ba zheng mao nian zhi bao (Treasure of concern over phenomenon at eighty) the stone of gray-celadon color with opaque mottling and striking dark-gray cloud swirls, with russet enhancing the horns and spines
Length 2 1/4 in., 6 cm, Width 2 1/4 in., 6 cm
The Duvernois Family Collection, France, acquired in the 19th century and thence by descent.