Collecting Guides
Coin Grading Basics: What MS-63, VF-20 and 'Details' Mean
How the 1–70 Sheldon scale works, what the letters and plus signs on a slab mean, when third-party grading is worth paying for, and how to record grades.
Topic
Grading & rarity
Grades, key dates and mintages: what makes one coin worth more than its twin. 3 posts.
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Inside the Catalog: 65,000+ Coins From 200+ Countries
One search covers more than 65,000 coins from over 200 countries, with mintages, key dates and design notes, plus weights that fill in when you add a coin.
Collecting Guides
Junk Silver Explained: How Much Silver Is in Pre-1965 US Coins
Pre-1965 dimes, quarters and halves are 90% silver. How much silver each holds, how to value a pile of them, and how to check a 'times face' quote.