VI Groschen 1761. Königsberg. 2.47 gm.
Two hair locks on shoulder. Monogram countermarked behind bust. Olding 454a, Bit 719, Diakov 719, Sev 1846, Uzd 4893. Light purple-gray, blue-white highlights. Very rare and unpublished with countermark. Extremely fine

Ex The New York Sale XXIV, Jan.6, 2011, lot 1121, comes with sales tag