This coin is unlisted in RIC with a star in the right field. Trier 256 has a star in the left field. Lech has an example on his Not in RIC page, which is listed as a probable engravers error. It could be an error, but this example is from a different die, which makes it seem more probable that it is an unlisted issue. The second picture is the coin on Lech's site.
Licinius II
A.D. 320
20mm 2.9gm
LICINIVS-IVN NOB C; radiate, draped and cuirassed bust right.
VIRTVS-EXERCIT; standard inscribed VOT/XX with captive seated on ground on either side. Star in right field.
In ex. STR
RIC VII Trier –
