Refer to the passage below and then answer the question afterwards in the same language as the passage:

Passage: The Afghan rupee was the currency of Afghanistan until 1925. Before 1891, silver rupees circulated with copper falus and gold mohur. The three metals had no fixed exchange rate between them, with different regions issuing their own coins.

Question: Aside from silver rupees, what other currencies were in circulation in pre-1891 Afghanistan?
copper falus and gold mohur