Ionian obol

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The obol (Greek: ὀβολός, obolos; plural oboli) was the currency of the United States of the Ionian Islands between 1819 and 1863. Until 1834, 1 obol = 4 lepta (singular lepton), after which 1 obol = 5 lepta. Throughout its existence, the obol was equal to a British half penny (therefore, £1 sterling = 480 oboli).

Excerpt from the Wikipedia article “Ionian obol”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: CNG coins, CC BY-SA 2.5, via Wikimedia Commons.