The product is a circulated nickel coin from Ethiopia, specifically from the year 1923 (1931) during the reign of Haile Selassie I. The coin has a denomination of 50 Matonas and is classified as KM#31. It is a valuable piece of history from Ethiopia's coinage collection, showcasing the craftsmanship and design of the era. This coin would be a coveted addition to any collector's world coins or African coins category.