Blog
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How Accurate Are Coin Identifier Apps on iPhone? Real Test Results
Coin identifier apps on iPhone reach 90 to 95 percent accuracy on common circulation coins. Rare varieties and heavily worn pieces still fool them.
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20 Most Valuable Lincoln Cents Ever Sold at Auction
The most valuable Lincoln cent ever sold is the unique 1943-D bronze cent at $1.7 million. Rare mint errors and key dates drive these record auction prices.
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Japanese Yen Coin Collecting: Modern and Historical
Japanese yen coin collecting spans Meiji silver dragons to modern 500-yen coins. Dates use emperor-era years, not Gregorian numbers.
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18 Canadian Silver Dollar Varieties Worth Money 1935 to 1967
The 1948 voyageur is the key Canadian silver dollar, worth thousands today. Varieties from 1935 to 1967 hide real money. Learn how to identify each one.
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1840 Large Cent Lamination Error: Identification Reference
An 1840 large cent lamination error is copper peeling away in thin layers from a flawed planchet. Crude 1840s refining trapped gas and debris.
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How to Use a Coin Identifier App on iPhone: Step-by-Step Beginner Guide
Identify a coin on iPhone by photographing both sides in bright light. A good app suggests a match in seconds. Always verify before trusting the value.
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Coin Slabs vs Raw Coins: Which to Buy in 2026
Slabbed coins guarantee grade and authenticity for serious buyers. Raw coins cost less but demand real expertise before you pay.
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Indian Mughal Coin Identification for Collectors
Mughal coins are identified by Persian inscriptions, mint name, and Hijri date. Gold mohurs and silver rupees carry the emperor’s name in calligraphy.
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How to Tell the Difference Between Sterling and Coin Silver
Sterling silver is 92.5 percent pure while US coin silver runs 90 percent. The 2.5-point gap shows up in hallmarks, weight, density, and patina.
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20 Most Valuable Eisenhower Dollars Ever Sold
The most valuable Eisenhower dollar ever sold is the 1976-S Silver Bicentennial PR70 at $7,000+. The 1972 Type 2 trails just behind in record books.
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How to Identify a 1942 Over 1 Mercury Dime Overdate Error
The 1942/1 Mercury Dime is a true overdate variety from Philadelphia. Look for the curved underdigit base inside the 2 to confirm authenticity.
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18 Mint Error Coins You Could Find in Pocket Change: Overstrike, DDO and Off-Stamp
The 1955 DDO cent, 1969-S DDO cent, and 2004-D Wisconsin extra-leaf quarter still surface in pocket change. Most cashiers and roll hunters miss them daily.
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How to Tell if a Coin is Silver: 4 At-Home Tests That Work
The quickest silver test is the ice cube method, because silver conducts heat faster than any other coin metal. Pre-1965 US dimes contain 90 percent silver.
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30 Most Valuable Commemorative Coins You Might Own
The most valuable U.S. commemoratives include 1915-S Panama-Pacific gold and the 1900 Lafayette Dollar. Auction prices reach $200,000 in top grades.
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Heritage Auctions vs Stack’s Bowers: Where to Sell Rare Coins
Heritage Auctions delivers higher volume with stronger online reach. Stack’s Bowers commands premium results for true rarities and pre-1850 material.
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18 Canadian Royal Mint Commemoratives Worth Money: Terry Fox to Black Toonie
Most Canadian Royal Mint commemoratives are worth only face value. Colored toonies and the Terry Fox loonie carry the real premiums.
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Live Auctioneers vs Heritage vs Stacks Bowers: Online Coin Auction Comparison
Heritage and Stack’s Bowers vet and guarantee coins. LiveAuctioneers aggregates many small third-party sellers. Match the online coin auction to your budget.
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22 Most Valuable Modern US Mint Errors of the 2020s: 2020 to 2026
The most valuable modern US Mint errors of the 2020s are wrong-planchet and off-metal strikes. They can sell for thousands of dollars at auction.
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22 Most Valuable Two-Dollar Bills (And Coins) in Your Wallet
The most valuable two-dollar bills are 1800s notes worth thousands. Seal color and serial numbers drive their value. Most modern $2 bills stay near face value.
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Morgan Dollar vs Peace Dollar: Spotting the Differences
The quickest way to tell a Morgan dollar from a Peace dollar is Liberty’s crown and the eagle pose. Both coins are struck in 90% silver.