Julian II AR Siliqua Lyons, 1.97 g. AD 360-363.  

DN IVLIA-NVS AVG, pearl-diademed, draped and cuirassed bust right.
VOT V MVLT X in four lines within wreath. 

Mintmark LVG.

RIC -; Gemini XI, Lot 568.
Unpublished.

With permission of Gemini XI, Lot 568, Jan 2014.

The lettering on the reverse might suggest that it is irregular, 
but the portrait and lettering on the obverse look official, 
and the metal is good silver