1 Keping Sultana

The keping coinage of Sumatra occupies an unusual corner of numismatic history — these pieces were struck not by a sovereign mint but effectively by commercial interests operating under sultanate sanction, filling a chronic small-change void that Dutch colonial authorities had repeatedly failed to address. By the 1830s, the East Indies trade in tin and pepper created constant demand for low-denomination transactional currency that neither Batavia nor the local sultanates could reliably supply in quantity. The kepings that emerged were quasi-official at best.

Singh's classification of this piece as SS 13 reflects how fragmented the attribution record remains for Sumatran copper issues of this period.