Maybe I have looked at too many Flavian denarii in the last few year because as soon as I saw the coin I knew it was definitely not struck in Rome. Usually when I question the mint I find that the coin is of Ephesus. However, the style of the Ephesian portraits is quite easily identified and this coin definitely does not immediately look like a denarius of Ephesus. It also looks nothing like an issue of Antioch. These denarii are very distinctive and can usually be identified in relatively short order. It also does not resemble the denarii of France or Spain. Rome Lyon (Lugdunum) Antioch Spain Ephesus Now take a look at my most recent acquisition. Vespasianus (69 - 79 CE). Denar (Silber). 76 CE Uncertain ‘o’ mint, possibly Ephesus (18mm. 2.92g) Obv: Kopf mit Lorbeerkranz rechts; IMP CAESAR VESPASIANVS AVG. Kopf mit Lorbeerkranz rechts. Rev: Geflügelter Cadeceus; PON MAX TR P COS VII. RIC 1477; BMC 483; RSC 375a Ex: Solidus Auction 76 April 6, 2021 Lot 1247 Now this one does not look like any of the examples I have shown above. However, I have seen similar busts before. This coin is a rare 'o' mint denarius. RIC places this coin in the mints of Asia Minor (Uncertain) and states that this coin was possibly struck at Ephesus, but I do not see any definitive evidence of this. To me this coin does not look at all like a coin of Ephesus. While the 'O' is not visible under the neck truncation (its usual location), the style is an identifier here. These 'O' mint denarii have portraits of a very particular style. I am very happy to have added this denarius to my collection. I am even happier that it seemed to fly under the radar because the price I paid was quite inexpensive for an 'O' mint issue. This is my third 'O' mint denarius and I hope to add more. Please post your coins where the attribution is contested or uncertain in the literature.