I've just received a fun Celtic group lot from a metal detectorist in the Netherlands. Part of the group lot (largely consisting of Senones potin in medium condition) was this small fragment of a coin: dimensions: 9.3 x 12.7 mm, weighing 1.80 grams. It was broken in antiquity, as can be seen from the uniform patina both on the surfaces and the breaking lines. I would welcome any suggestions what the coin might have looked like if complete. I suspect the diameter once was around 20 mm: One side looks a bit like a Nervi potin from my collection (the reverse): weighing 5.8g and 19 mm in diameter.
... well, sorry, could have looked a bit longer. Found it: Celtic Coins THE CELTS IN WESTERN EUROPE The Coinage of Gallia Belgica –From the Seine to the Rhine The Nervii Branch Series . Cast Potin (AE, 6.18 g), c. 60-30/25. Vertical ‘branch’ flanked by four pairs of dolphin-like ornaments. Rev. Stag standing left within circle of annulets. BMC 520. DLT 8636. DT 631 var. Scheers 190, Classe III, var. a. An elegantly engraved coin with a fine brown patina. About extremely fine.