Watch List notes:

SWITZERLAND, Kanton Schaffhausen. Schaffhausen. 12th century. AR Runder Pfennig (23mm, 0.43 g). Ram standing left on roof; square tower in background, quatrefoil before, star below legs / Incuse and reverse of obverse. HMZ, Schweiz 1-419; Coraggioni -. VF, a few minor edge splits. Very rare.