Licinius II, as Caesar, 317 - 324 AD
Æ20, Treveri Mint, 2.7 grams
Obverse:  LICINIVS IVN NOB C, Radiate bust right.
Reverse:  VIRTVS EXERTIT, Standard inscribed VOT XX with captives seated at ground on either side.  STR in exergue.

Reference:
RIC299

Constantine II, as Caesar, 317 - 337 AD
Æ18, Treveri Mint, 3.2 grams
Obverse:  CONSTANTINVS IVN NOB C, Laureate head right.
Reverse:  CAESARVM NOSTRORVM, Laurel wreath around VOT X, STR in exergue.

Reference:
RIC433

Provenance:
ex M & R Coins, about 1985, $8

Crispus, as Caesar, 317 - 326 AD
Æ19, Arelate Mint, 2.9 grams
Obverse:  CRISPVS NOB CAES, Laureate head right.
Reverse:  CAESARVM NOSTRORVM, Laurel wreath around VOT X, T * AR in exergue.

Reference:
RIC254

Divo Maximiano, struck by Constantine, 317 - 318 AD
Æ17, Rome Mint, 2.1 grams
Obverse:  DIVO MAXIMIANO SEN FORT IMP, Veiled head right.
Reverse:  MEMORIAE AETERNAE, Eagle standing right with wings open and head turned left.

Reference:
RIC113

Provenance:
ex Sal Falcone, Santa Clara Coin Show, about 1988, $17

Constantinopolis Commemmorative, struck circa 336 - 337 AD
Æ18, Heraclea Mint, 1.7 grams
Obverse:  CONSTANTINOPOLI, Helmeted bust of Constantinopolis left, spear over shoulder.
Reverse:  GLORIA EXERCITVS, Two soldiers standing either side of a single standard with Christogram, both hold spears.  SMHA in exergue.

Reference:
similar to RIC157

Notes:
Of particular note on this coin is the odd use of the double beaded obverse border.