Delmatius was part of Constantine's extended family, in this case one of his nephews. He was made Caesar in 335 but murdered along with several other family members shortly after Constantine died in 337 in a purge engineered by Constantius II (and presumably with the aid and consent of his surviving brothers).
AU Solidus
RIC 113 Solidus Obv: FLDELMATIVSNOBCAES - Laureate, draped and cuirassed bust right. Rev: PRINCIPIIVVENTVTIS Exe: CONS - Delmatius standing left, holding vexillum and scepter; two standards to right. c.336-337 (Constantinopolis). $12,221 12/5/02.
AE3
RIC 69 (Alexandria), LRBC 1439 AE3 Obv: FLDELMATIVSNOBC - Laureate, cuirassed bust right. Rev: GLORIAEXERCITVS Exe: SMAL - Two soldiers standing either side of one standard. $250 5/19/04.
RIC 90 (Antioch), LRBC 1362 AE3 Obv: FLDELMATIVSNOBC - Laureate, cuirassed bust right. Rev: GLORIAEXERCITVS Exe: SMAN - Two soldiers either side of two standards. RIC 112 (Antioch) AE3 Obv: FLDELMATIVSNOBC - Laureate, cuirassed bust right. Rev: GLORIAEXERCITVS Exe: SMAN - Two soldiers either side of a standard. RIC 132 (Cyzicus) AE3 Obv: FLIVLDELMATIVSNOBC - Laureate, cuirassed bust right. Rev: GLORIAEXERCITVS Exe: SMK - Two soldiers either side of one standard. 336-337 (Cyzicus). RIC 147 (Aquileia) AE3 Obv: FLDELMATIVSNOBC - Laureate, draped and cuirassed bust right. Rev: GLORIAEXERCITVS Exe: •AQ - Two soldiers either side of a standard. 336-337 (Aquileia). RIC 141 (Constantinople) AE3 Obv: FLDELMATIVSNOBC - Laureate, draped and cuirassed bust right. Rev: GLORIAEXERCITVS Exe: CONS - Two soldiers either side of a standard. 336-337 (Constantinopolis). $165 7/1/04. RIC 153 (VII, Constantinople) AE3 Obv: FLDELMATIVSNOBC - Laureate, draped and cuirassed bust right. Rev: GLORIAEXERCITVS• Exe: CONSI - Two soldiers either side of a standard. 335-336 (Constantinopolis). RIC 155 (Heraclea) AE3 Obv: FLDELMATIVSNOBCAES - Laureate, draped and cuirassed bust right. Rev: GLORIAEXERCITVS Exe: SMH - Two soldiers either side of a standard. 335-336 (Heraclea). RIC 204 (Nicomedia), LRBC 1129a AE3 Obv: FLDELMATIVSNOBC - Laureate, draped and cuirassed bust right. Rev: GLORIAEXERCITVS Exe: SMN - Two soldiers either side of one standard. RIC 227 (Thessalonica), LRBC 850 AE3 Obv: FLDALMATIVSNOBC - Laureate, draped and cuirassed bust right. Rev: GLORIAEXERCITVS Exe: SMTS - Two soldiers either side of one standard. $200 1/16/02. RIC 228 (Thessalonica) AE3 Obv: FLDELMATIVSNOBC - Laureate, cuirassed bust right. Rev: GLORIAEXERCITVS Exe: SMTS - Two soldiers either side of one standard. RIC 256 (Siscia), LRBC 758 AE3 Obv: FLDELMATIVSNOBC - Laureate, draped and cuirassed bust right. Rev: GLORIAEXERCITVS Exe: SIS - Two soldiers either side of one standard. 335-336 (Siscia). RIC 266 (Siscia) AE3 Obv: FLDELMATIVSNOBC - Laureate, draped and cuirassed bust right. Rev: GLORIAEXERCITVS Exe: SIS - Two soldiers either side of one standard. 337 (Siscia). RIC 369 (VII, Rome) AE3 Obv: FLDELMATIVSNOBC - Laureate, cuirassed bust right. Rev: GLORIAEXERCITVS Exe: R - Two soldiers either side of two standards. 335-336 (Rome). RIC 398 (VII, Arles) AE3 Obv: FLDELMATIVSNOBCAES - Laureate, draped and cuirassed bust right. Rev: GLORIAEXERCITVS Exe: CONST - Two soldiers either side of one standard. 336-337 (Arelate). RIC 399 (VII, Arles) AE3 Obv: FLDELMATIVSNOBC - Laureate, draped and cuirassed bust right. Rev: GLORIAEXERCITVS Exe: CONST - Two soldiers either side of one standard. 336-337 (Arelate).