Mint and Date: Alexandria, 148 - 149 CE.
Size and Weight: 30mm x 32mm, 16.32g
Obverse: Laureate, draped and cuirassed bust right.
AYT K T AIΛ AΔP ANTΩNINOC CEB EYC
Reverse: Isis Pharia advancing right, holding inflated sail in both hands and sistrum in right hand, the Pharos (lighthouse) of Alexandria before.
ΔΩΔE - KAT
Exergue: L OY
Provenance: mrniceguys (eBay), October 2007
Ref: RCV (2002) 4438.
BW Ref: 022 035 116
Note: The reverse legend begins and ends in the exergue space. Combined, it reads L ΔΩΔEKATOY, meaning "of the twelfth year." Presumably it has been spaced this way to fit in with the reverse type, which must have been engraved first.
In weight, this coin is halfway between a drachm and a hemidrachm. The Pharos is not known to appear on a hemidrachm, so this must be an unusually light drachm.