Nesiaca Drachma
Mentioned by Alexandrian writers, was a silver coin struck by the "Island League," principally in Tenos but also with other types, in the Islands of Andros, Melos, Paros, Naxos, and others. See Babelon, Traite (vol. i. 501)
Source: Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)