This coin is not in RIC for the obverse legend
Constantine I
A.D. 310-312
24mm 4.4g
CONSTANTINVS AG; laureate and trabeate bust left, holding eagle tipped scepter.
COMITI AVGG N N; Sol standing left, chlamys across left shoulder, right hand holding up globe, whip in left, in right field ✶.
In ex. PLN
RIC VI London --; LMCC 7.03.057, 2nd ed.
LMCC describes this bust as cuirassed; though in footnotes cites another example and says it might be trabeate. I believe anytime Constantine is holding an eagle tipped sceptre, the bust is meant to be trabeate; though it might resemble cuirassed.
for example this coin
Constantine I
A.D. 310-312
22x23mm 5.0gm
CONSTANTI-NVS AV[G]; laureate and cuirassed bust left, holding eagle tipped scepter.
COMITI-AVGG NN; Sol standing left, chlamys across left shoulder, right hand holding up globe, whip in left, in right field ✶.
In ex. PLN
RIC VI London 182; LMCC 7.03.047
LMCC says this coin is trabeate; but it is the same as the above coin; which is described as cuirassed.