Tibet, Qian Long (1793), 3/4-Sho (Half-Tangka), 2.83g, 58th year, four groups of seven beads, date reads clockwise, starting at 9 o'clock near the rim: nian wu shi ba (year fifty eight), rev. four groups of seven beads, Tibetan date reads clockwise, starting at 12 o'clock near the rim: lnga bcu nga brgyad (fifty-eight) (C#66.2), PCGS AU55, #45306811, very rare variant with 28 dots on each side.
Estimate: 24000 - 32000