Brazil
Republic gold 20000 Reis 1910, KM497, Russo-729, MS64 NGC. Coruscating luster delivers considerable eye appeal with sporadic orange-gold tone that ensures complete originality. Recent price history for this date includes an example graded MS63 by NGC that was sold in January of 2013 by Stack's Bowers for $3525.
Estimate: 2000-2500 USD