Choice Very Fine Roman Egypt Alexandria tetradrachm billon silver coin.

Struck for Emperor Philip I at the Alexandria Mint.

Minted in the Emperor's 6th regnal year, denoted by Greek letter S = 248/49 CE.

Reverse: Bust of Zeus facing right, L S.

Emmett 3517/6, Rated as R5 (extremely rare), 13.74g.

Certified by NGC to Ch VF, brown patina.