Poland
Nicholas I Zloty 1830-FH MS64 NGC, KM-C114.1. An exceptional representative of this fleeting series, brimming with luster and featuring bold designs on each side. While the obverse shows remnants of planchet striations that weren't completely struck out, the reverse glows with warm, olive-gray tone. Currently the single-finest certified example by NGC and PCGS combined, with no others graded finer.
Estimate: 2000-2400 USD