Rare dated Roman Egypt Alexandria Marcus Aurelius billon tetradrachm issued while Caesar under Emperor Antoninus Pius.
Minted in the 14th Alexandrian year of Emperor Antoninus Pius = 150/151 CE.
Date is denoted by L I Delta on reverse.
Obverse: Youthful draped bust of Marcus Aurelius with beard right .
Reverse: Bust of Nilus (personification of Nile River) facing right.
Apparently UNPUBLISHED reverse type for year 14.
Certified by NGC to VF.