Claudius, AR Cistophoric tetradrachm, Ephesus Ionia, struck AD 50-51, 11.55 g. 

TI CLAVD CAESAR AVG P M TR P X IMP XIIX, Laureate head of Claudius right. 
AGRIPPINA AVGVSTA CAESARIS AVG, draped bust of Agrippina Junior r. C 2. BMC 234. RIC 117. CBN 295; RPC 2223. 

Rare. 

With permission of Numismatica Ars Classica auction 86, Lot 118, Oct. 2015.
Ex Tkalec auction February 2001, lot 258 and 
Numismatica Ars Classica auction 72, lot 607 (2013).