Watch List notes:

Herennius Etruscus, as Caesar, 249-251. Antoninianus (Silver, 22 mm, 4.20 g, 6 h), Rome, circa 250-251. Q HER ETR MES DECIVS NOB C Radiate and draped bust of Herennius Etruscus to right, seen from behind. Rev. CONCORDIA AVGG Clasped right hands. Cohen 4. RIC 138. A superb, bright and lustrous example. Virtually as struck.