The inspiration for this post was this book and it’s yummy drawn plates:
I’ve been interested in boar standards since the sestertius imitation with one turned up on the market; I think it likely to be a fantasy piece from some past modern century, not ancient, but some feel differently. Regardless of who made it in whatever century for what ever purpose, the maker clearly knew the common occurrence of boars and boar standards on Celtic coinage (including in Britain).
Sheers 1991 has done great work on this type and many more. Her identification of the Mensor as the obverse inspiration is spot on!
Lest the reader is left with the impression that all Celtic coinages derive from Roman many have other inspirations (Massilian, Sicilian, Macedonian, esp. Philippoi coins, Thasos, to name a few mints), AND in some cases are very much their own creation.
Colonna, Giovanni. “Gli scudi bilobati dell’Italia centrale e l’ancile dei Salii.” Archeologia classica 43 (1991): 55-122. It is gloriously illustrated. JSTOR link