Watch List notes:

Herennius Etruscus as Caesar. 250-251 AD. Antoninianus, 3.22g (11h). Rome, . Obv: Q HER ETR MES DECIVS NOB C Radiate, draped bust right. Rx: PRINCIPI IVVENTVTIS Apollo seated left, holding branch and resting left elbow on lyre. RIC 146 (R). Cohen (1st ed.) 13 (C ). This coin was mistakenly omitted in Cohen's second edition. Acquired from Fred Knobloch, ANA Show, 15 August 1966.