Roman coins of the first to mid third century quite often show a peculiar striking error: their obverses are normal, but their reverses are overstruck, either with two different dies of the same type, or with two different types that were however apparently in use simultaneously. The apparent explanation of this phenomenon occurred to Colin Kraay during a conversation with Curtis Clay in the early 1970s.

Late Roman coin-clipping is now receiving an illuminating programme of scholarly scrutiny and examination.  The potential findings promise to bring new light to bear on the political and economic turmoil of the late Roman period/immediate post-Roman era in Britain. 

The mint magistracy of Marcus Fonteius is doubly rare for being attested in the classical literature (Cicero pro M. Fonteio 5) but not represented by any extant coinage bearing his name. This article discusses the evidence that the whole tradition of the speech known as Cicero's "pro M. Fonteio" is wrong and should be "pro Mn. Fonteio".

By convention, numismatists illustrate the obverse of a coin to the left and the reverse to the right.  So the art historian sees a Corinthian stater differently than the technical numismatist.  One might ask what difference it makes whether the obverse is set to right or left?  The answer is that conventions ease our ability to communicate about coins.

How did the cornucopia became a symbol commonly used on ancient Jewish coins?  In fact, the cornucopia was one of the most popular religious symbols of the ancient world.

-Large Hoard of Celtic Gold and Silver Coins Found in Netherlands
-NGC to Launch Services for Ancient Coins  
-Happy Days Again for Ancient Roman Coin Hoard
-A Constellation of Stars (Ancient Coins for Education prize winner)