Watch List notes:

Sweden, Pomerania, Karl X Gustav SB 38 ¼ taler (1 reichsort) 1658 XR 7,10 g. Stettin. Mintmark V-B (Ulrich Butkau). Ex. Künker 201 lot 676, Ex Collection Martin Eriksson (Stockholms Auktionsverk 1981, No. 3211), Ex C-O Algård, Vancouver. Most likely only specimen in private hands. Extremely rare! 1+