Roman Imperial Orichalcum Sestertius Marcus Aurelius, Victoria 166-168 AD, 26.4 grams
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Item number:
R027
Obv. Laureate head Marcus Aurelius right
Rev. Victoria advancing left holding wreath
Orichalcum is a nobel metal used in ancient, it's a special pure brass, or it's an alloy of pure brass and gold, or an alloy of pure brass and silver, or it's an alloy of pure brass with gold and silver, it's different from bronze which is normally an alloy of copper and zinc
Weight: 26.4 grams
Size: 29.14 mm, 30.32 mm, uncirculated