Canopus of Osiris
This purely Egyptian motif was a representation of Sarapis (or occasionally Isis) with characteristics of Osiris, god of the dead. The form was that of Canopic jars, which were used to contain the visera of the mummified dead.
Curtis (1990) p.35
Milne 1595 Antoninus Pius
Curtis (1990) p. 292 coin 234