This is a Gadhaiya Paisa made by the Chaulukyas of Gujarat. It is a billon
coin. It is a anonymous coin late in the series which was made between 1120-1210 AD. Your coin is Deyell 159 in his
book Living Without Silver
has a very stylized
crowned head facing right, partly off the flan
on your coin. Most of the facial features have geometric patterns. The reverse
is a fire altar
flanked by attendants, both of which have become lines and dots.