Here we have Antoninus Pius Sestertius Caracalla Provincial (Antioch) Marcus Aurelius Sestertius Gordian III Sestertius
Maximinus I ("Thrax") Augustus A.D. 235-238 Bronze Sestertius Rome mint, A.D. 236-238 Obv: MAXIMINVS PIVS AVG GERM Rev: PAX AVGVSTI - Pax, standing left, holding branch and traverse scepter between S and C RIC 81 29mm, 15.9g. Balbinus Augustus, A.D. 238 Bronze Sestertius Rome mint, A.D. 238 Obv: IMP CAES D CAEL BALBINVS AVG Rev: CONCORDIA AVGG - Concordia seated, facing left, holding patera and cornucopia. SC in exergue. RIC 22 28mm, 19.8g. Galerius (Maximian) Caesar, A.D. 293-305 Augustus, A.D. 305-311 Bronze Nummus Ticinum mint, A.D. 295-296 Obv: MAXIMIANVS NOB CAES Rev: GENIO POPV-LI ROMANI - Genius, modius on head, naked but for chlamys hanging from shoulder, holding patera and cornucopiae ST in exergue RIC 30b 28mm, 9.9g. Constantius I Caesar, A.D. 293-305 Augustus, A.D. 305-306 Bronze Nummus Siscia mint, A.D. 300-301 Obv: CONSTANTIUS NOB CAES Rev: SACRA MONETA AVGG ET CAESS NOSTR - Moneta, standing left, holding scales and cornucopiae SIS in exergue; ✳ in left field, B in right RIC 135a 28mm, 9.5g.
Not my wheelhouse, and crappy photo to boot, but here's my only sestertius. It's the earliest use of the radiate nimbus I could afford at the time. Vespasian used it too, but not on anything cheap! These sestertii seem impractically heavy, but in 1797 AD we have George III's "cartwheel" twopence at double the weight (2oz), and his penny about the same as the sestertius (1oz), since those coins were meant to contain their face value in copper.
Thanks for introducing cast bronze. I have a few nice size pieces. Ramo Secco, Currency Bar - Fragment of a bronze ingot, branch with no leaves on both sides. AE. 826 grams (=2.5 asses); Length = 62 mm, Width = 77 mm, Height = 36 mm Countermarked Aes Formatum, Dupondius - Cast Bronze ingot with Marks - II for two Asses. 559 grams (280 gram equivalent As); 67x65x31 mm. The nugget is next to two one pound Roman scale weights for size comparison.
(Also had sestertii of Pupienus and Gordian III, but have no pix of those.) Alas, only the Antoninus Pius above remains in my present possession. .