This is a 10 minute post, A “because I promised a coin a work day” post.
The legs of the curule chair resting on top of a base line out of which a serpent-like head rises on this type of Q. Metellus in Africa reminds of Caesar’s famous elephant coin.
I don’t have anything much more really to say, other than a caryx (Gallic ritual war implement) seems a likely identification or what ever creature the caryx itself is supposed to represent. This is not an educated view and luckily I don’t need to talk about either coin in my book. Someone far more qualified will handle the issue in the sequel!
Linderski, p. 174 n. 111 give references to various theories for the top Metellus coin.
The Caesar coin is hotly debated in many forums.
I’d want to see more specimens but I’d say the two are likely to be showing the same serpenty-thing, whatever it means. And, I suspect someone else has also drawn the parallel based on how the identification possibilities for both seem to run parallel in the literature.