Self-proclaimed central bank with no currency of its own

Oddly enough, a central bank with no currency and no interest rates, as Bloomberg reports from eastern Ukraine:

The Republican Central Bank has a governor, a couple of thousand employees and a glass-and-steel headquarters. It also has a bunker in its basement. Here’s what the nascent, self-proclaimed Donetsk People’s Republic in eastern Ukraine is missing: a financial system. Absent from the central bankers’ toolkit are a currency and interest rates.