France
Republic gold Proof Piefort 20 Centimes 1849 PR65 NGC, Maz-1229, VG-3250. Featuring Oudine's Liberty head with date and value in wreath, this fully lustrous jewel presents spectacular, mottled auburn tone over nicely mirrored fields and light cameo contrast. The design is almost exactly like the currency issue, but without the mintmark. Of the highest-rarity, and highly engaging as such.
Estimate: 10000-12000 USD