Marcus Antonius with Octavianus Aureus, RRR

Marcus Antonius. Aureus (20-21 mm, 7.77 g), mint moving with M. Antonius (Ephesus ?), Spring-Summer 42.
Obv. M·ANT·IMP AVG III VIR·R·P·C M·R:ARBAT·Q·P, Bare head of M. Antony to right.
Rev. CAESAR·IMP·PONT·III·VIR·R·P·C, Bare head of Octavian to right.
Babelon -; C -; Bahrfeldt 77 var.; Sydenham -; Sear Imperators 242 var.; Calicó 109b var.; Crawford 517/1b var.

An apparently unrecorded legend variety (R:ARBAT) of an exceedingly rare type. Several edge marks, otherwise about very fine.

Ex Auction Numismatica Ars Classica AG 78 (2014), 758 (hammer 21'000 CHF).