Watch List notes:

COINS, 錢幣, INDIA – PORTUGUESE INDIA, 印度 - 葡屬, Galle: Silver Tanga, Ceylon, 1640, Obv countermarked GAL monogram for Galle (cf Sch 1271; Gomes 15.01). Test cuts in edge, scrape in obverse field, otherwise coin and countermark very fine.
Portuguese Indian coins countermarked by the Dutch East India Company (VOC) for use in their colonies in Ceylon

Estimate: US$150-200