Watch List notes:

Claudius. AD 41-54. Æ As (25mm, 7.56 g, 9h). Uncertain Gallic mint Issue Countermarked for Use in Germania Inferior. Bare head left; c/m: BON (for BONum = good) in incuse rectangle / Minerva advancing right, brandishing spear and shield; S C across field. For coin: cf. RIC 100 (for type); von Kaenel Type 75; for c/m: Pangerl 42. Host coin Fair, countermark VF, earthen green patina.

From the collection of the MoneyMuseum, Zurich. Ex Jacquier FPL 26 (Spring 2001), no. 296.