Anonymous, AE19, Festival of Isis issue, 2.51 g. AD 360-363. 

ISIS FARIA, draped bust of Isis facing, wearing hem hem crown.
VOTA PVBLICA, Isis, holding sistrum and sceptre, sitting 
front, looking right, on the back of the Sothis dog, running right.

Alföldi 369a; Vagi 3409.

With permission of cngcoins.com, auction 271, Lot 98, Jan. 2012. (citing Vagi 3391 in error)