Watch List notes:

Herennius Etruscus, as Caesar, 249-251. Antoninianus (Silver, 23 mm, 4.17 g, 7 h), struck under Trajan Decius, Rome, 251. Q HER ETR MES DECIVS NOB C Radiate, draped and cuirassed bust of Herennius Etruscus to right. Rev. CONCORDIA AVGG Clasped right hands. Cohen 4. RIC 138 (Decius). Light tonng. Very fine.

From the Trausnitz Collection, acquired prior to 2007.