Will J. asks: Can you tell me how to find out information about the coins of the ancient khanates of Central Asia, such as Parthia, Bukhara, Samarkand, etc.
The empire that was known as the Parthian Kingdom was a world power in its day. It existed from about the 3rd century BC to the 3rd Century of the Christian era. The center of power for the Parthian Kingdom was approximately where Iran exists today. The coins were to the Greek Standard and throughout Parthia’s history the legends and the denominations were Greek.
You might want to check out the American Numismatic Society’s Searchable database to find out more information about this interesting people and their coinage.