Watch List notes:

Augustus, with Gaius Caesar, Æ 19mm of Apamea, Phrygia. Circa 5 BC. Gaius Masonius Rufus, magistrate. ΣΕΒΑΣΤΟΣ, laureate head of Augustus right / Gaius Caesar standing in facing quadriga, holding sceptre; ΓΑΙΟΣ ΚΑΙΣΑΡ above, ΓΑΙΟΣ ΜΑΣΩΝΙΟΣ ΡΟΥΦΟΣ [AΠΑΜΕΩΝ] in three lines below. RPC I 3129; BMC 139-40; SNG von Aulock 3484; Weber 7033. 4.56g, 19mm, 12h.

Near Very Fine.

From the inventory of a Swiss dealer;
Ex Roma Numismatics Ltd, E-Sale 62, 17 October 2019, lot 616.