Roman Counter Mark ID

"The countermark NCAPR was applied to numerous orichalcum coins of the reigns of Tiberius and Claudius. NCAPR is most often explained as "Nero Caesar Augustus Populo Romano." Others believe NCAPR abbreviates "Nummus Caesare Augusto Probatus" or "Nero Caesar Augustus Probavit" (probavit means approved). Excavations of the Meta Sudans and the northeastern slope of the Palatine Hill in Rome indicate that this countermark was applied for Nero's congiarium (distribution to the people) in 57 A.D., which supports the Populo Romano interpretation. Varieties of this relatively common countermark are identified by some authors as applied in either Italy, Spain or Gaul. The countermark is not found on coins bearing the name or portrait of Caligula. Clearly any coins of Caligula that were still in circulation and collected for application of the countermark were picked out and melted down, in accordance with his damnatio, rather than being countermarked and returned to circulation. A NCAPR countermark has, however, been found on a Vespasian dupondius which, if genuine and official, seems to indicate the N may refer to Nerva, not Nero."
http://www.forumancientcoins.com/ca...pos=0&sold=1

Ah. At last. This is my "learned something new" for the day.

Thanks for the question and answer.