Constantine I AE18, 2.53 grams, Arles. 330-335 AD.

Obv: CONSTANTI-NVS MAX AVG, rosette-diademed, draped 
and cuirassed bust right.
Rev: GLOR-IA EXERC-ITVS, two soldiers holding spears 
and shields with two standards between them with dots on banners. 
Star above the standards.
Mintmark PCONST.

RIC VII Arles 345.

Courtesy of TimeLine Originals (www.time-lines.co.uk), March, 2010