Watch List notes:

KOREA:LOT of 1687 value 1 mun square hole sang p'yong tong bo cash coins, all from the Jiùjinshan Collection, a wonderful mix of many different mints, series numbers and character varieties with little duplication, a magnificent study lot, average circulated condition, retail value $3500, lot of 1687 coins, ex Jiújinshan Collection. There are estimated to be more than 5,000 varieties of this coin type and the sang pyong tong bo coins were used for more than 250 years (1633-1891 AD) which was longer than any other coin in Korean history.

Estimate: 1,600-2,000 USD