The product is a Roman Provincial Egypt Alexandria BI Tetradrachm coin from the era of Nero, struck between AD 54-68. Made of billon, the coin has a certification number from NGC and a grade of Ch XF. The historical period is Roman Provincial, and the variety features an Alexandria bust. This ancient coin weighs 9.24g and has a strike of 4/5 and a surface of 3/5, making it a valuable piece for collectors interested in Roman coinage.