1/2 Rupiah

The Governor of Sumatra's authority to issue currency in 1947 was not merely administrative convenience — it reflected a genuine rupture in the young Republic's ability to govern from Jakarta. Dutch military pressure during the first "Police Action" of that year isolated much of the outer island infrastructure, forcing regional administrations to print their own emergency money. Bukittinggi, then functioning as the de facto capital of Republican Sumatra, became a printing center by necessity.

The S-prefix in the Pick reference signals its regional emergency status. These Sumatran gubernatorial notes circulated in parallel with central Republican issues, and the half-rupiah denomination targeted the smallest everyday transactions in a wartime economy running largely on barter.