Mexico
Republic Error 8 Reales 1841 iP-JS AU Details (Cleaning) PCGS, San Luis Potosi mint, KM377.12. An important error for in the Cap & Rays series, with the superscript "i" in the mint initials placed before the "P", creating an unusual and highly collectible mintmark type. While rare, examples do appear on the market from time to time, suggesting that this curious mistake went undiscovered for a least a while during the coining process.
Estimate: 300-500 USD