Constantius I,      22mm aEF ae Post-reform radiate of Heraclea     Sear 3665     V.M. 32
FL VAL CONSTANTIVS NOB CAES - Radiate, draped and cuirassed bust right
CONCORDIA MILITVM - Constantius standing right receiving Victory on globe from Jupiter
Minted sometime between 293 and 296 A.D., while Constantius was Caesar serving under Maximian.  The curl of hair behind Constantius' ear shows him to be an Orthodox Jew, a position I intend to document in my Doctoral thesis. :)  ex. Ancient Auction House

Constantius I     27mm gVF follis of Alexandria     RIC 40
FL VAL CONSTANTIVS NOB CAES - Laureate head right
HERCVLI VICTORI - Hercules standing facing head l., holding apples and leaning on club, lion skin draped from elbow
Struck in 304 - 305 AD, these follii with Hercules on the reverse were produced for Maximian and his Caesar Constantius.  An equivalent issue with Jupiter on the reverse was produced for Diocletian and his Caesar Galerius.  These coins show the claims to mythical dynasty wonderfully.  ex. Jano Cayon

Constantius I     18mm VF ae quinarius of Siscia    Sear 3683     V.M. 25     RIC 169a
CONSTANTIVS AVG - Laureate head right
GENIO POPVLI ROMANI - Genius standing l. holding cornucopia and patera
A fairly rare denomination, this is my only coin of Constantius as Augustus.  Since he was only Augustus for a year before he died, coins of Constantius as Augustus are relatively uncommon. 

Constantius I     27mm aVF follis of Cyzicus     Sear 3630     V.M. 24
FL VAL CONSTANTIVS NOB CAES - Laureate head right
GENIO AVGG ET CAESARVM NN  - Genius standing l. holding cornucopia and patera