The 2020 Grass Prairie Quarter Error Die Chip on Butterflies Wing is a unique and rare coin with a discrepancy in the design. This coin was minted in Philadelphia as a business strike in 2020 with a denomination of 25 cents. The error feature is evident on the coin, making it a valuable addition to any coin collection. The die chip on the butterfly's wing adds a distinctive touch to this specific coin, making it a standout piece for collectors interested in errors and unique variations in US currency.