Watch List notes:

The Roman Empire
Pupienus, 22 April – 29 July 238

As his co-emperor Balbinus, Pupienus also has one portrait type, with only rare variants. AMP.

Denarius 238, AR 3.90 g. IMP C M CLOD PVPIENVS AVG Laureate, draped and cuirassed bust r. Rev. CONCORDIA AVGG Concordia seated l., holding patera and cornucopiae. C 6. BMC 42. RIC 1.
Old cabinet tone and extremely fine
Ex Baldwin sale 55, 2008, 2072. Ex E.J.W. Hyldiard collection. Illustrated on www.romancoins.info, section imagines imperatorum. This coin will be included in the upcoming book on portraits on Roman coins (see introduction to this auction catalogue).
An exceptional and unusual portrait of Pupienus, again this could be a variant made by an especially skilled die engraver. AMP.