Indian rupee
To the middle of the 20th century, the Indian rupee was also used as the official currency in the emirates on the eastern Arabian Peninsula namely Kuwait, Bahrain, Qatar, the Trucial States, and Oman. That meant, in effect, that the Indian rupee was the common currency in those territories as well as in India. The Indian rupee was pegged to the British pound at a rate of 13⅓ Indian rupees = 1 pound.