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Narayan Kumar is the Founder and Author of Worth My Coins. She specializes in U.S. coin collecting, with a focus on coin identification, mint errors, grading, rare varieties, and collector education. Her goal is to publish accurate, well-researched, and easy-to-understand guides that help both new and experienced collectors make informed decisions. Every article is created using trusted numismatic references and is written with a commitment to accuracy, transparency, and long-term educational value.

Most Valuable Roosevelt Dimes Worth Money: 15 Rare Coins Every Collector Should Know

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Most valuable Roosevelt Dimes worth money including rare silver dimes, key dates, mint errors, and collectible varieties

Roosevelt Dimes have been part of everyday American pocket change since 1946, which makes them easy to overlook. Most are only worth their face value, but a small number stand out because of low mintages, important mint errors, high-grade rarity, or silver content. Learning how to recognize these coins can help collectors avoid spending a … Read more

1913 Liberty Head Nickel Value Guide: Why This Rare Coin Is Worth Millions

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1913 Liberty Head Nickel showing the obverse and reverse of one of America's rarest collectible coins

Few American coins have achieved the legendary status of the 1913 Liberty Head Nickel. Even people with little interest in coin collecting have likely heard stories about this mysterious five-cent coin selling for millions of dollars. Unlike many rare coins that survive in the thousands, only five genuine examples of the 1913 Liberty Head Nickel … Read more

Most Valuable Mercury Dimes Worth Money: 15 Rare Coins Every Collector Should Know

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Collection of valuable Mercury Dimes featuring rare key dates, mint marks, and Full Bands examples

Mercury Dimes have long been favorites among U.S. coin collectors. Designed by Adolph A. Weinman and struck from 1916 through 1945, the series combines artistic beauty with several genuinely scarce dates, famous mint errors, and highly collectible key issues. While many Mercury Dimes are common silver coins, a handful stand out because of their rarity, … Read more

1914-D Lincoln Wheat Penny Value Guide: Key Date, Mint Marks & Current Prices

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1914-D Lincoln Wheat Penny showing the obverse and reverse with the Denver mint mark beneath the date

Few Lincoln Wheat Pennies are as respected by collectors as the 1914-D. Although it doesn’t receive as much public attention as the famous 1909-S VDB cent, experienced numismatists know that the 1914-D is one of the toughest regular-issue coins needed to complete a Lincoln Wheat Penny collection. Finding one in any condition is exciting, but … Read more

Rare Lincoln Wheat Penny Errors Worth Money: 12 Valuable Varieties Every Collector Should Know

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Rare Lincoln Wheat Penny errors showing doubled die, bronze 1943 cent, and other valuable Wheat Cent varieties

Lincoln Wheat Pennies are among the most popular U.S. coins ever collected, but not every valuable cent is valuable because of its date alone. Some of the most desirable Wheat Pennies became famous because of dramatic mint errors and die varieties that collectors have pursued for decades. Learning how to recognize these errors can help … Read more

1932-D Washington Quarter Value Guide: Rare Key Date, Mint Marks & Current Prices

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1932-D Washington Quarter key date silver coin showing obverse and reverse with Denver mint mark

The 1932-D Washington Quarter is one of the most important coins in the Washington Quarter series. Although millions of Washington Quarters have been produced since 1932, very few are as well known among collectors as the Denver issue from the series’ first year. Its low mintage, historical significance, and lasting collector demand have made it … Read more

1976 Bicentennial Quarter Value: Rare Errors, Mint Marks & Prices in 2026

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1976 Bicentennial Quarter with dual date 1776-1976 showing the Colonial Drummer reverse and Washington obverse

The 1976 Bicentennial Quarter is one of the most recognizable U.S. coins ever made. Its unique Colonial drummer reverse and dual date 1776–1976 make it stand out from every other Washington quarter. Because millions remain in circulation, many people wonder whether the one in their pocket change could actually be worth more than 25 cents. … Read more

How to Tell If Your Buffalo Nickel Is Valuable: 9 Signs Collectors Look For

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Collector examining a Buffalo Nickel for date, mint mark, and condition to determine its value

You don’t need to be an experienced coin collector to spot a valuable Buffalo Nickel. While millions were minted between 1913 and 1938, certain dates, mint marks, varieties, and condition factors make some examples far more desirable than others. Learning what to look for can help you avoid overlooking an important coin—or overestimating a common … Read more

1942/41 Mercury Dime Value Guide: Rare Overdate Error, Mint Marks & Current Prices

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1942 over 1941 Mercury Dime overdate error showing date close-up and reverse design

The 1942/41 Mercury Dime is one of the most famous error coins ever produced by the United States Mint. Unlike ordinary Mercury Dimes that entered circulation by the millions, this variety resulted from an unusual die preparation mistake that created an unmistakable overdate. Today, it remains one of the key collectible varieties in the series … Read more

1921 Morgan Silver Dollar Value Guide: Rare Mint Marks, Errors & Current Prices

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1921 Morgan Silver Dollar showing obverse and reverse with mint mark identification

The 1921 Morgan Silver Dollar is one of the most interesting coins in American numismatics because it represents the final year of the original Morgan Dollar series. While millions were struck in 1921, not every coin is equally desirable. Mint mark, condition, strike quality, and authenticity all play major roles in determining collector interest and … Read more