Beautiful example with full silvering! Guillemain cites only 4 examples of this exact variant!
Obverse: IMP C M AVR PROBVS P F AVG
Radiate, cuirassed and draped bust right.
Reverse: ROMAE AETERNAE / RΔ
Roma seated in temple, holding Victory and sceptre.
Bilon, diameter 24 x 23,2 mm, weight 4,56 g.