Britannicus and Nero, AE17 of Pergamum, Mysia. Struck under Claudius AD 50-54. 3.53 g. BRETANNIKOC KAICAR, Draped bust of Britannicus right. NERWN KAICAR, draped bust of Nero right. RPC 2371; Imhoof KM 3; SNG Munich 131-132. Very rare. With permission of Numismatica Ars Classica Spring Sale 2020, Lot 888, May 2020. Ex Glendinings 20, lot 41, Nov 1969; Sternberg XIII, lot 580, 1983 and Palombo 5, lot 73, 2008