I was recently corresponding with an Italian colleague about the obverse head on the coins of Vetulonia and how to source a decent image.
These are drawings from Sambon:

He’d found this throw away earlier post of mine and that’s how we got talking. Here’s a Paris specimen; a BM specimen.
Well today I was looking for a reference and came across another v old blog post of mine. And lo! Do you see the parallel?


I feel very confident that this intaglio depicts Nethuns wearing a ketos (sea serpent) headdress.
Update 8/24/22:


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[…] of thing for thinking about coin imagery like the ketos helmet/headdress on the coins of Vetulonia (blog post) or even the boar headdress on Roman Republican bronzes. (RRC 39/2 […]