King standing left wearing sword, holding trident to right, altar at his feet, standard above, partial Bactrian legend / Siva standing beside bull (left) holding trident, tamgha right. 21mm, 8.23 grams. Taxila series, very late crude series, Mitchiner ACW 3471ff.
Vāsudeva I was a Kushan emperor, last of the "Great Kushans."