Bust of Cleopatra VII The mailman brought an interesting tetradrachm that highlights the detailed inspection that can be required to differentiate between ancient coins. Looking at this coin there are a few possibilities for exactly who issued this coin. One possibility: a coin of the last Pharaoh of Egypt the 17-year old Ptolemy Caesar or Ptolemy XV. Ptolemaic Kings of Egypt, joint rule of Cleopatra VII and Ptolemy XV (aka Caesarion), 37-30 BC, AR Tetradrachm, Alexandria min