Pop 1, None Finer!
Spain: Isabel II 1834-M NC 20 Reales PCGS AU58 (De Vellon, KM-576)
A scarce low mintage issue of just 4,769 pieces. Unfortunately, very few survived and it's a very difficult piece to evaluate, but similar, less rare examples of this issue from different mints have consistently brought over $10k recently. This is the only one graded by PCGS.