The ERIC rarity list only counts imperial coins, not provincial coins. Some Romans, especially Tranquillina, are extremely rare on imperial coins...
An old thread gives updated rarity rankings based on 667,000 coins: https://www.cointalk.com/threads/rarity-rankings.256796/#post-2041938 You...
Victor is right. The book lists 255 type varieties for Crispus from Trier alone. Many pages look like this: [ATTACH] With line-drawn bust types...
The type is Claudius (41-54 AD) [of "I, Claudius" fame] / Minerva. As it happens, there is another thread on this type going now:...
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