Not unlisted but pretty scarce as far as I could tell. One of the most difficult PRINCIPI IVVENTVTIS types to get in (at least) VF condition. I would rate this spec as aXF, struck w/ worn reverse die.
CONSTANTINE I AE24mm 5.02g Follis
AV: CONSTANTINVS P AVG; Laureate, helmeted cuirassed bust r. holding spear in r. hand over r. shoulder and shield in l. hand.
REV: PRINCIPI IV - VENTVTIS; Emperor standing l. cloack hanging over l. shoulder, holding globe in r. hand and reversed spear in l. hand. * in r. field.
EXE: PLN London mint.
REF: RIC VI London 228, rated R, mid. 310 to late 312AD.
