Note: RIC lumps two obverse legends into one listing.
PERPETVO IMP C PROBO AVG & PERPETVO IMP PROBO AVG

4th emission of Serdica, 277 CE (Pink) / 280-81 CE (Gysen).

RIC 869, Serdica. Bust type F. Denomination: Antoninianus.

OBV.: PERPETVO IMP C PROBO AVG

Radiate, cuirassed bust right.

REV.: SOLI INVICTO

Sol in spread quadriga, right hand raised, holding globe in left.

Mintmark: KAAlpha [ No exergual line ]

Weight: ?

Image provided courtesy of EMPORIUM HAMBURG

Emporium Hamburg Auktion 48, 20-21 November 2002

RIC 869, Serdica. Bust type H. Denomination: Antoninianus.

OBV.: PERPETVO IMP PROBO AVG

Radiate bust left in imperial mantle, holding sceptre surmounted by eagle.

REV.: SOLI INVICTO

Sol in spread quadriga, right hand raised, holding globe in left.

Mintmark: KABeta [ No exergual line ]

Weight: 3.06 g.

Image provided courtesy of Uwe Neumann.