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58 guides on precious metals and numismatics — how they're priced, how they're made, what makes a coin worth more than its metal, and how to buy without overpaying.
Grade-by-grade price estimates for 174 classic US key dates, each sourced from a named numismatic reference — up to $1,714,917 for the finest known example.
Most star notes bring $1.25 to $3 over face. Runs under 640,000 notes, scarce districts and 2013 $1 duplicate pairs ($7,200 to $25,000) are the exceptions.
Read guideA pre-1965 silver dime melts for about $4.73 at $65.39 silver. Barber, Mercury and Roosevelt values by grade, key dates like the 1916-D, and what dealers pay.
Read guideHow the 1-70 Sheldon coin grading scale works, what PCGS and NGC actually do when they grade and slab a coin, and where the American Numismatic Association fits in.
Read guideWhat a mint mark is, where to find one on a U.S. coin, and what each letter -- P, D, S, W, CC, O, and no mark at all -- actually tells you about where a coin was struck.
Read guideShould you clean ancient coins? Learn why cleaning is generally discouraged by collectors, how the "patina" adds value, and what methods professionals use for essential conservation.
Read guideWhy do Americans call the one-cent coin a "penny"? Learn the difference between the official U.S. term "cent" and the colloquial slang "penny," and the history behind the terminology.
Read guideLearn the anatomy of a coin by exploring its key parts, from the obverse and reverse to the mint mark, field, and rim, to better understand and appreciate your coin collection. A Coin's Anatomy: Understanding Its Essential Features
Read guideEvery 90% silver dollar holds 0.7734 oz of silver, about $50.57 at today's spot. Morgan and Peace values by grade, key dates, mint marks, and what dealers pay.
Read guidePut the guides into practice -- melt values, ratios, and allocations against live spot prices.
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