Germany, Brandenburg, Frederick II (1440-1470), firchen (so-called erroneous quarto), men. Przecław (Prenzlau), after 1447

Av. M○O○n○Э○T○A○, eagle.

Rv. M○O○n○Є○T○A○, frog's muzzle type helmet with plume to left, four rings around.

Silver, 0.35 g, 14.4 mm. Unevenly minted, but without damage.

Bahrfeldt Brandenburg II 24a.

A rare and sought-after coin, see https://www.kuenker.de/de/archiv/stueck/290073.