SWEDEN. Oscar I, 1844–1859. 1/3 Skilling Banco 1850 (Copper, 20 mm, 4.70 g, 6 h), engravers error with 'BÄNCO' instead of 'BANCO'. Stockholm. RÄTT OCH - SANNING Crowned monogram. Rev. 1/3 / SKILLING / BÄNCO (sic!) / 1850 Within laurel and oak wreath with crossed arrows. KM 657 var. (BANCO). Rare. A stunning example of this interesting engraver error with full mint luster. In NGC encapsulation, graded MS 65 RB. Top Pop. Virtually as struck.