Johore is now a state in Malaysia - but in the late 19th. Century, an issue of banknotes dated 1 May 1878 was put into circulation there with the permission of the Johorean Government.
https://en.wikipedia.org/wiki/Banknotes_of_the_Constantinople_Estate_(Johore) .
The currency that these notes are denominated in is the Straits Settlements Dollar.
Aidan.