Hi there! Based on your question, it seems like you're looking to have a coin authenticated and graded. A few items from the PriceCheck search results that could help with this are: - Catalogue of the Collection of Colonial and State Coins 1787 New York Brasher Doubloon U.S. Pioneer Gold Coins Extremely Fine C (available for R372) - This listing includes information on coin authentication and grading that could aid your evaluation. - Illustrated Encyclopaedia of Gold and Silver Coins of the World Illustrating the Modern Ancient Current and Curious From A.D. 18 (available for R637) - As an encyclopedia, this book likely contains details to help identify and assess the value and condition of your coin. I hope one of these resources is useful for your coin authentication needs. Let me know if you have any other questions!