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Learning Guide

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.

investing· beginner· 14 min read

Understanding the Troy Ounce: Your Guide to Precious Metals Weight

What is a troy ounce? Learn the crucial difference between a troy ounce and a standard ounce, and why this universal unit of measurement is the foundation of trust in the global gold, silver, and platinum markets.

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bullion· intermediate· 14 min read

What Is Bullion? An Introduction to Precious Metals

Learn about bullion coins, rounds, and bars made from precious metals like gold, silver, and platinum, and understand why their value is tied directly to their weight and purity.

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history· intermediate· 15 min read

The History of Gold Prices: From Fixed Value to Free Market

Trace the history of gold prices from the fixed rate of the Gold Standard to the free-floating market of today, and understand why events like the Nixon Shock made gold a premier safe-haven asset.

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collecting· beginner· 22 min read

Silver Quarter Value: What Every 1932-1964 Quarter Is Worth Today

Every 1892-1964 quarter holds 0.1808 oz of silver, about $11.83 at today's spot. Values by grade, key dates like the 1932-D, and what dealers really pay.

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collecting· beginner· 17 min read

How Many Quarters in a Roll? Count, Weight, Box Size and Silver Value

There are 40 quarters in a roll ($10). See roll counts and weights for every U.S. coin, box and bag sizes, what to hunt for, and what a silver roll is worth.

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collecting· beginner· 22 min read

War Nickel Value: Silver War Nickels by Date, Grade and Variety

A war nickel holds 0.05626 oz of silver, about $3.68 at $65.39 spot. Values by date and grade for all 11 issues, the key varieties, and what dealers pay.

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Coin value guides

All 31 series

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.

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Topic
Level
collecting· beginner· 26 min read

Star Note Value Guide: What Your Star Note Is Worth in 2026

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.

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collecting· beginner· 20 min read

How Much Is a Dime Worth? Silver Dime Values by Year and Grade

A 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.

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collecting· intermediate· 11 min read

PCGS, NGC, and ANA Grading Standards Explained

How 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.

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collecting· beginner· 10 min read

How to Read Coin Mint Marks: A Field Guide

What 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.

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collecting· intermediate· 12 min read

To Clean or Not to Clean: The Ancient Coin Dilemma

Should 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.

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collecting· beginner· 7 min read

Penny vs. Cent: Understanding the Official Terminology

Why 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.

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collecting· beginner· 10 min read

A Coin's Anatomy: Understanding Its Essential Features

Learn 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

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collecting· beginner· 22 min read

How Much Is a Silver Dollar Worth? Melt Floor, Grades and Key Dates

Every 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.

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Free calculators & tools

Put the guides into practice -- melt values, ratios, and allocations against live spot prices.

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