7. "NCAPR" and "NERCPP" Countermarks on Julio-Claudian Coins 

This section covers the "NCAPR" countermarks, standing likely for "Nerva Caesar Augustus Probavit". This hypothesis is supported by a Vespasian dupondius with the "NCAPR" countermark, making the previous attribution to Nero very unlikely. ("Nero Caesar Augustus Probavit" or "Nero Caesar Augustus Populo Romano"). There are different subtypes of this relatively common countermark originating in Italy, Spain or Gaul.

The meaning of the much rarer "NERCPP" is not yet clear. It could refer to Nero (Nero Caesar Pater Patriae), but more likely also to Nerva (Nerva Caesar Pater Patriae).  

(countermarks Martini Pangerl Collection 1, MPC 20, and MPC 60)

"NCAPR", on a Claudius sestertius.

Another "NCAPR", on Claudius sestertius. This one is actually a modern fake, as pointed out 1974/75 by Gregory Brunk in his
3 part series, "The Ancient Countermarks", which appeared in the Nov., Dec. 1974 and Jan. 1975 issues of the "Numismatist".
 

5 examples of "NCAPR", on Agrippina I sesterti
(donor)

"NCAPR", on Divus Augustus sestertius of Tiberius

"NCAPR" on Antonia Dupondius

"NCAPR" on Tiberius or Germanicus AE (?)

"NCAPR" on brockage coins (Gallic mint Claudius sesterti)


 

GALBA countermark combined with a crossed out (?) NERCRPP countermark, also a female head left countermark