Japan
Showa nickel Proof Pattern 10 Sen Year 8 (1933) PR66 NGC, Osaka mint, cf. KM-Y54, cf. JNDA-01-28. Dots variety. Obv. Central band flanked by semi-circle pattern; dot to left and right, legend with RY date above and below. Rev. Central hole garnished by karakusa sprays; denomination across field, chrysanthemum above, paulownia below. Breathtaking matte surfaces on the obverse, with a brilliantly lustrous and mirrored reverse. An extremely rare choice gem, with no other examples able to be located.
Estimate: 8000-10000 USD