2018 Base d'asta: € 50,00 Caligula, 37-41 AD. AE Quadrans. 3,10 g. 16.76 mm. Obv: C CAESAR DIVI AVG PRON AVG, Pileus between SC. Rev: PON M TR P IIII PP COS QVAT around RCC. RIC 52 var. Not in RIC with COS 4 (QVAT), listed only for COS 3 (TERT). Courtesy of Asta Tintinna Numismatica and deamoneta.com, Jun, 2010