Maximianus AE Antoninianus. 

Obv: IMP C M A VAL MAXIMIANVS P AVG, radiate, bare bust right, tie over 
 shoulder 
Rev: CONSERVATOR AVGG, Emperor holding sceptre and Hercules leaning on club, 
 face to face, sacrificing at altar. 
Mintmark:XXI.(Lambda).I., left field: P. 

RIC V-2, 581, Siscia mint, rated rare (bust type)

Contributed by Dane for George Clegg (biggyg2), August, 2006.