PSA Grading Standards

Professional Coin Grading: How To Find Someone To Grade Your Coins

Coin Grading 101: How To Determine The Grade Of Every U.S. Coin In Your Collection

Premier Rare Coins on Instagram: "Grading Colonial Spanish Silver Coins (Conception Shipwreck) Professional grading services such as the Numismatic Guaranty Company (NGC) and the Professional Coin Grading Service (PCGS) assign grades using trained specialists who examine coins under controlled lighting and magnification. They evaluate strike sharpness, the coin’s original mint luster, the number and placement of abrasions from handling or bag contact, any impairments such as cleaning, and overal