Watch List notes:

MACAO: AR ingot (30.88g), square 1 troy ounce silver bar stamped at center Àomén (Macau) / míng dian around ancient spade money, jiu jiu (99) at bottom, small stamp tian xiáng at right, bai fú , and dà zhen below, PLAT. at lower left and zhi at left, with various other geometric stamps around, VF, ex Charles Opitz Collection. Privately made silver ingot circa 1935-50.

Estimate: 75-100 USD