You read a lot where people say Romans knew the earth was a sphere. But looking at this Constantius II what was that phoenix actually supposed to be standing on? Seems to be belted somehow. Looks more like a shield.
CONSTANTIUS I (Caesar, 293-305). Follis. Alexandria.
Obv: FL VAL CONSTANTIVS NOB CAES.
Radiate, draped and cuirassed bust right.
Rev: CONCORDIA MILITVM / Δ / ALE.
Prince standing left in military dress receiving small Victory on globe from
Jupiter standing right, leaning on sceptre.
RIC 48a. 21.5 mm, 3.08 grams
Constantius II Æ Nummus. Siscia, AD 348-350. D N CONSTANTIVS P F AVG,
peal-diademed, draped and cuirassed bust right / FEL TEMP REPARATIO,
radiate phoenix standing right on globe; star in right field, SIS in
exergue. RIC 129. 18 mm, 2.48 grams




