India, British India, 1764-1807 AD., East India Company, Madras Presidency, Charles II and later, Fort St. George mint, Madras, Double Fanam, Pridmore 18.

British India, Madras Presidency, Charles II and later, Fort St. George mint, Madras, third issue, struck ca. 1764-1807 AD.,
Double Fanam (ø 9 mm / 1,80 g), silver,
Obv.: four-armed Vishnu standing facing, holding chakra in each upper hand.
Rev.: C C -monogram, two letters 'C' presumed to mean King Charles II.
KM 308 ; Pridmore 18 ; cf. Mitchiner NIS&WC 1805 ff .
https://www.zeno.ru/showgallery.php?cat=9624

The earliest coins of the company in Madras were small silver pieces issued from their factory at Fort St. George in about 1670's. These coins were undated with two interlinked C's on the reverse (assigned to the reign of King Charles II).