I have a similar one - from the Numista listing:
Quote:
These coins were not official currency of any state. They were first issued in the early 1800s by British merchants at Singapore, to alleviate base coin shortage, before spreading to various parts of the Malay Archipelago. To circumvent confiscation attempts by colonial authorities (particularly the Dutch), British merchants use inscriptions that refer to locations that are vague, fictitious, or unaffiliated to Europeans. In this manner, legally it could not be argued that the tokens were intended for circulation in colonial territories.
The token's "Island of Sultana" is a fictitious location. They were issued after a Dutch proclamation in 15th October 1835 to confiscate a previous issue with "Island of Sumatra" inscription.
https://en.numista.com/catalogue/pieces37109.html
Inordinately fascinated by bits of metal with strange markings and figures