Susia (modern Tus, near Mashhad) in the northeast of Iran was an important ancient city which was conquered by Alexander in 330 BC, it is said in this city Alexander showed himself for the first time in an oriental dress, in an attempt to win the hearts of the Iranians.
The interesting thing is that archaeologists have found some coins of Philip in this city, one of them is already in Razavi Museum of Mashhad, as you read
here, "the oldest coin in the museum’s possession is one dating back to King Philip II, father of Alexander the Great."
This is the coin:
I think this is similar to coins of Alexander but there is the name of Philip on the back of the coin!