Switzerland
Bern. Canton Counterstamped 40 Batzen ND (1816-1819) VF30 NGC, KM179, Dav-1333. C/S (AU Strong). Counterstamped "40 BZ" and Bern shield on French Ecu 1789. Very boldly countermarked on a respectable host coin.
From the Engelen Collection of World Coinage
HID02901242017
Estimate: 400-600 USD