This coin has a pretty funny reverse legend of BEAT•TRA-N•QLITAS. The engraver thought that TRANQLITAS was two words!

LMCC also has an example
Constantine I
A.D. 321- 323
Æ nummus 20mm 3.4g
CONSTANTINVS AVG; helmeted and cuirassed bust left.
BEAT•TRAN•QLITAS; globe set on altar inscribed VOT/IS/XX; above, three stars
in ex. PLON
RIC VII London 264; LMCC 9.05.011