The Goddess Nanaea (or, in its Greek form, Nanaia) appeared on a two Drachma coin issued by Kanishka I (circa 115 - 140 AD)of the Kushan Empire: ehttp://www.grifterrec.com/coins/kushan/i_kush_3071_r.jpg
The reverse side portrays a figure (probably Poseidon) holding a trident:
http://www.grifterrec.com/coins/kushan/i_kush_3071_o.jpg