Browse by Coin
Denomination-specific identification issues, compositions, frequent errors, varieties, and misleading lookalikes.
Lincoln Wheat Cents
Wheat cents attract error and variety claims involving planchets, doubled dies, RPMs, laminations, clips, and famous transitional pieces.
Lincoln Memorial Cents
Memorial cents span bronze and copper-plated zinc compositions and produce many real errors plus many plating lookalikes.
Lincoln Shield Cents
Modern Shield cents commonly show plating damage and small die chips, while major certified mint errors are less common.
Indian Head Cents
Older bronze cents can show clips, laminations, off-centers, die cracks, repunched dates, and circulation damage.
Buffalo Nickels
Buffalo nickels support recognized varieties, die erosion, weak strikes, clips, off-centers, and the famous three-legged issue.
Jefferson Nickels
Jefferson nickels offer doubled dies, wrong planchets, off-centers, clips, cuds, broadstrikes, and war-nickel composition questions.
Mercury Dimes
Mercury dimes can show clips, off-centers, broadstrikes, laminations, die varieties, and damaged bands.
Roosevelt Dimes
Roosevelt dimes appear in silver and clad compositions and are often found with off-centers, broadstrikes, wrong planchets, and missing-clad claims.
Standing Liberty Quarters
Standing Liberty quarters combine challenging strike quality with occasional clips, off-centers, laminations, and die varieties.
Silver Washington Quarters
Pre-1965 Washington quarters can show clips, off-centers, broadstrikes, laminations, doubled dies, and RPMs.
Clad Washington Quarters
Clad quarters support dramatic wrong-planchet, missing-layer, off-center, broadstrike, and collar errors.
State Quarters
State quarters generated intense variety hunting, including Wisconsin extra leaf and many named die chips.
America the Beautiful Quarters
ATB quarters attract die-chip names, doubled-die searches, missing-clad claims, and genuine major strike errors.
American Women Quarters
Modern high-detail quarter designs create abundant visual anomalies, most of which require careful die-state and damage analysis.
Walking Liberty Half Dollars
These silver halves can show clips, laminations, off-centers, broadstrikes, die varieties, and strike weakness.
Franklin Half Dollars
Franklin halves offer clips, broadstrikes, doubled dies, bugs bunny clashes, and bell-line condition questions.
Kennedy Half Dollars
Kennedy halves span silver and clad compositions and can show wrong planchets, missing layers, off-centers, broadstrikes, and doubled dies.
Morgan Dollars
Morgan dollars attract die varieties, off-centers, clips, broadstrikes, laminations, and extensive alteration or counterfeit risk.
Peace Dollars
Peace dollars can show recognized die varieties, clips, laminations, broadstrikes, and production-related strike characteristics.
Eisenhower Dollars
Large clad and silver-clad dollars can show friendly eagle varieties, clips, off-centers, broadstrikes, missing layers, and wrong planchets.
Susan B. Anthony Dollars
SBA dollars support wide-rim varieties, wrong planchets, off-centers, broadstrikes, and collar errors.
Sacagawea and Native American Dollars
Manganese-brass dollars are known for edge, planchet, strike, mule, and finish-related research.
Presidential Dollars
Presidential dollars are especially associated with missing, doubled, overlapped, or unusual edge lettering.
World Error Coins
World mints produce planchet, die, strike, edge, and denomination errors under many different production systems.