The seller of this coin described it as "double unity".
I am finding that "double unity" is commonly used in religions. It may be that the "double unity" of this coin and others is a description of a god depicted in both his/her role as god and as earthly personification.
Here "double unity" is used to describe a coin depicting
Heracles and an
Eagle.
https://www.catawiki.com/l/6759923-greek-antiquity-sicily-mamertin-278-270-bc (this is one of several examples) Might this be a "double unity" because
Herakles is wearing the leonte over
his head?
Page 17 of this publication uses the term to describe how
personifications became distinct deities from the original gods. https://ia600207.us.archive.org/31/items/cu31924032329207/cu31924032329207.pdf
What are your thoughts?