| Note: RIC lists these coins with R-><-A (R thunderbolt A), RჲΓ (R wreath Gamma), RჲΔ (R wreath Delta), omitting R thunderbolt Delta. R thunderbolt A is most certainly a misreading of Δ for A, since hundreds of such coins have been attested from hoards as being from officina four. Thus, rather than a variant, one can catalogue coins with R-><-Δ as either RIC 183, ignoring RIC's mistake, or as RIC 183 corr. | 
| RIC 183; MPR 444; Rome. Bust type H,
                (H2). Denomination:
                Antoninianus. | 
| OBV.: IMP PROBVS
                  P F AVG Radiate bust left in imperial mantle, holding sceptre surmounted by eagle. REV.: ROMAE AETER Roma seated in temple, holding Victory and sceptre. Mintmark: RჲΔ 
                    R wreath (corona)
                      Delta Weight: 4.11 g. M & M auktion 45, 09 June, 2017. | 
|  | 
| RIC 183 corr.; MPR 474; Rome. Bust type H,
                (H2). Denomination:
                Antoninianus. Not listed for this officina in RIC, see note above. | 
| OBV.: IMP PROBVS
                  P F AVG Radiate bust left in imperial mantle, holding sceptre surmounted by eagle. REV.: ROMAE AETER Roma seated in temple, holding Victory and sceptre. Mintmark: R-><-Δ  R thunderbolt (fulmen) Delta Weight: 3.44 g. Image provided courtesy of Dr. Busso Peus Nachfolger Auktion Dr. Busso Peus 374, 23 April, 2003 |