Diocletian, follis, bronze, reign 284-305, minted 302-303

Diocletian, follis, bronze, reign 284-305, minted 302-303, weight 10.5 g, diameter 27 mm. Obverse: laureate, cuirassed bust right; legend IMP DIOCLETIANVS P AVG. Reverse: Genius standing left, modius on head, nude except for chlamys over left shoulder, holding patera in right hand and cornucopia in left; legend GENIO POPVLI ROMANI; exergue PTR, officina mark in field. Strike: centered strike on a round flan with complete legends and major devices intact. Toning: stable dark brown patina with lighter high points. References: RIC VI Trier 505, standard typology for the Trier mint. The follis was introduced as part of Diocletian’s currency reform around 294 to stabilize the imperial monetary system after decades of debasement. Issued from the Trier mint during the Tetrarchic period, this coin illustrates the centralized control exercised over provincial mints. The obverse presents Diocletian as perpetual Augustus, reinforcing his senior status among the four rulers. The reverse type showing Genius with patera and cornucopia conveys themes of sacrifice and abundance, symbolizing the state’s promise of prosperity to the Roman people. Coins of this series were struck in large quantities to facilitate tax collection and soldier payment, and they circulated widely across the Western provinces until weight reductions under Constantine.