From what I know of the history, it just doesnt seem to make sense for Tiberius to have made a coin for Germanicus. I know Germanicus was considered an adopted son to Tiberius, but Tiberius really wanted his son to be heir and might have had Germanicus killed. It seems far more likely that Caligula made this coin to honor his father. Here is the coin I received Here is a coin that seems like a match (attributed to Caligula) Here is a coin on Frank Robinson's site that is also attributed to Caligula Here are two coins from Claudius and Caligula on Forum Ancient Coins. If anybody has an opinion they want to share, I would be grateful. I knew the coin might not be a Tiberius when i bought it (but wanted it anyway). I would actually prefer a Caligula if I am being honest. I thought a Caligula would be more rare, but I have seen a list of emperors ranked by scarcity of coin on here recently, that indicated Tiberius coins are a bit rarer than Caligula's. I know Caligula was a prolific spender, but he did have a much shorter reign and then became the first emperor to receive Damnatio Memoriae.