Watch List notes:

MYSIA. Hadrianaea. Tranquillina, Augusta, 241-244. Tetrassarion (Bronze, 32 mm, 19.08 g, 5 h), wife of Gordian III. ΦOYP CAB TPANKYΛEINA Draped bust of Tranquillina to right; on chest, oval counter-mark with CΑΡ Δ (= 4 assaria). Rev. EΠI K ΦAN ΘEMICΩNOC AP / AΔRIANEΩN On the left, Hygeia standing right; on the right, Asklepios facing, his head turned to left. RPC VII 78 (very possibly 2, ex Waldeck). Rare. Brown patina. Good fine.

from the collection of W. F. Stoecklin, Amriswil, Switzerland, acquired from Münzen und Medaillen in Basel prior to 1975, but very probably from the collection of the Princes of Waldeck.