Watch List notes:

2nd century B.C. Æ (13 mm, 1.49 g). Bull standing left with taurine on left and swastika above right / Railed tree on left with hollow cross to right and 4-orbed 'Ujjain' symbol above. Pieper 968. Scarce. Brown patina, slight roughness. Very fine. 

This is an early uninscribed post-Mauryan cast copper coin.