Two attempts to smuggle historic coins were foiled at Cairo Airport on Wednesday.
The Antiquities Unit Bureau and the Antiquities and Tourism Police stopped a passenger carrying a Graeco-Roman gilded coin.
Police said the passenger was travelling to an Arab country but refused to specify which one.
Ahmed El-Rawi, head of the central administration of antiquities unit, said the coin is a unique Graeco-Roman artifact. It has a bearded royal face on one side and a picture of two birds standing on an olive branch on the other. The coin also bears Greek and Ptolemaic writing.
The antiquities unit also confiscated three Ottoman coins from a passenger entering the country from United States who was allegedly planning to sell them.
Both passengers are in custody as investigations continue and the coins have been handed over to the Ministry of State for Antiquities (MSA).