In 1825, an imperial order-in-council introduced British currency to Malta, replacing a system under which various coinages circulated, including that issued in Malta by the Knights of St John. The pound was valued at 12 "scudi" of the local currency. This exchange rate meant that the smallest Maltese coin, the "grano", was worth one third of a farthing (1 scudo = 20 tari = 240 grani). Consequently, -farthing (-penny) coins were issued for use in Malta until 1913, alongside the regular British coinage. Amongst the British colonies which used the sterling coinage, Malta was unique in having the -farthing coin.