How to Create New Coins With the Face of the New Ruler

Gautama Putra Satakarni most likely lived a couple of generations after Naha Pana. He conquered territories that were at some point in time ruled by the Maakshad Trappa of Naha PANA. And then you acquired those coins and he placed, he, he embossed his own likeness, his own face on top of Nha Pana's coins.