Watch List notes:

MACAO: AR ingot (15.57g), square ½ troy ounce silver bar stamped at center yong 'an qin, hénglì jian yàn at lower left, small stamps at right tian xiáng, bai fú, and dà zhen, PvfLAT. at bottom, small stamp zhi at left, with various other geometric stamps around, VF, ex Charles Opitz Collection. Privately made silver ingot circa 1935-50.

Estimate: 40-60 USD