Not recorded in RIC (the bust type is basically not recorded for this legend), similar to RMBT p. 42 3, on Not in Ric: http://www.notinric.lechstepniewski.info/7tri-311_g8_s.html Could you please add a better pic?
The OP type is on page 42, plate VIII #3 of Die Römische Münzserie BEATA TRANQVILLITAS in der Prägestätte Trier 321-323 by Dieter Alten an Carl-Friedrich Zshucke, 2004. That book also notes it is not in RIC. Your coin has about the same quality as their plate coin. The book illustrates and lists different bust types. (draped, right, left, radiate, laureate, helmeted, cuirassed, with spear and shield, spear forward, spear over shoulder, holding globe, eagle-tipped scepter, with Victory, palm raised, etc. etc.) The book lists hundreds of varieties from Trier from just those 3 years, of which 11 are of Licinius II.