How many tetradrachm coins from orophernes exist?

The exact number of tetradrachm coins from Orophernes, a historical figure associated with the ancient kingdom of Armenia, is not definitively known. These coins are relatively rare, and their surviving examples can vary based on archaeological discoveries and private collections. Scholars estimate that only a limited number of these coins exist, often resulting in high demand among collectors and historians. For precise figures, one would need to refer to numismatic catalogs or specific studies on ancient Armenian coinage.