Bronze quadrans, 17mm, 4.16gm, issued AD 41 Rome mint.
Obv: TI CLAVDIVS CAESAR AVG, Modius on three legs.
Rev: PON M TRP IMP COS DES IT, Legend surrounding S C.
References: Sear 1863, RIC 84.
This coin fits the following collection focus(es): Twelve Caesars.