Seal Inscribed with "Sa", Yuan Dynasty,jade seal with a dragon knob, 6 cm high, each side: 6.5cm

This jade seal has no edges on either side and two thick lines are inscribed on the upper and lower sides. One Tibetan alphabet "Sa" on it represents Sa-skya. Above the "Sa" are carved three circles, symbolizing the Three Jewels of Buddhism (majesty, fortune and perfection). On one side of the seal surface is inscribed with a line of new Mongol script, meaning "wisdom" in Chinese, which was the monastic title used by vPhags-pa when he became a monk. This extant jade seal inscribed with "Sa" is probably a seal used by vPhags-pa or another Imperial Tutor to affix his name to documents.