Quintillus 

Marcus Aurelius Claudius Quintillus, 270

Quintillus was the brother of Claudius II . On the death of Claudius, Quintillus was proclaimed emperor by his troops. Less than two weeks later, Aurelian made a bid for power, and the troops of Quintillus flocked to him. Left in a hopeless situation, Quintillus committed suicide after a reign of just seventeen days.

AE Antoninianus

Obv : Radiate bust of  Quintillus, right.
IMP C M AVR CL QVINTILLVS AVG

Rev : Pax, standing  left, holding olive branch and sceptre.
PAX AVGVSTI

 Pax represents peace.

 AD270