Watch List notes:

COINS, 錢幣, INDIA – PORTUGUESE INDIA, 印度 - 葡屬, Jaffna: Silver 2-Tangas, Diu, 16xx (1654-56), Obv countermarked , I above for Jaffna, Rev R (cf Sch 1287; Gomes 18.0x). Coin fine, countermarks very fine and extremely fine.
see lots 826 and 827 below for a possible explanation of the R countermark.
Portuguese Indian coins countermarked by the Dutch East India Company (VOC) for use in their colonies in Ceylon

Estimate: US$300-400