This one recently sold for $258.00. It is unlisted for this bust type (G11) and obverse legend (7b). It should come after RIC VII Trier 328. I am not sure that this is an official issue though, as the bust looks odd, but it may just be from the state of preservation and/or the photography.
Constantine II
A.D. 321
18mm 2.3gm
CONSTANTINVS IVN N C; laureate, cuirassed, spear across left shoulder, holding horse by bridle.
BEATA TRANQVILLITAS; globe set on altar inscribed VO/TIS/XX; above, three stars.
In ex. PTR
RIC --
