Comprehensive coin database that is especially useful if you are not sure what your coin is. SImply by entering some of the words that appear on the coin, UCoin will provide possible results.
Learn about coins and paper money through the collaborative catalog, covering all countries and all periods. This is another comprehensive and fantastic database, but not as easily searchable if you don't know what coin you have.
Numismaster.com is the leading source for coin and paper money pricing, specification and identification. Our extensive database covers coins from over 400 countries and over 1,200 independent coin issuers dating back to 1501 and paper money from its origin in 1368 through the present day with issues from over 300 countries.
Comprehensive database of die variety categories including design varieties, mintmark styles, and the ever popular doubled die, and Repunched Mint Marks (RPM) varieties for most coin denominations.
Another fantastic comprehensive database of both intentional and unintentional die varieties including doubled dies, repunched mint marks (RPMs), over mint marks (OMMs), dual mint marks (DMMs), inverted mint marks (IMMs), repunched dates (RPDs), misplaced dates (MPDs), and overdates (OVDs).
The Error – Variety Ready Reference
A comprehensive illustrated glossary of defects associated with the minting process. It contains detailed illustrated descriptions of hundreds of basic error types, numerous subtypes, and assorted effects associated with them. This site also includes a 22 page comprehensive error variety checklist.
The Combined Organization of Numismatic Error Collectors of America. CONECA is a national numismatic organization devoted to the education of error and variety coin collectors. CONECA focuses on many error and variety specialties, including doubled dies, Repunched mintmarks, multiple errors, clips, double strikes, off-metals and off-centers
This site is devoted to Morgan and Peace Dollar die varieties, known as VAM varieties.
Cuds-on-coins is designed to be a comprehensive visual database encompassing a wide range of die errors caused by brittle failure. However, its primary focus is “cuds”.
This site is dedicated to delivering today's collector information about the top Lincoln Cent Varieties including Doubled Dies, Repunched Mintmarks "RPMs", Over Mintmarks "OMMs", Large and Small Dates, Wide AM's and much more.
PCGS CoinFacts is an in-depth online encyclopedia of United States coins. As the most comprehensive database for U.S. coins on the internet, CoinFacts is a collector’s leading educational resource for buying, selling, and collecting coins.
Your Online Reference for Paper Currency
With PCGS Photograde, you can obtain the approximate grade of your coin by comparing it to the photo that most closely matches its appearance.
The PCGS Price Guide is a guide to assist the coin buying public in determining values for all important United States rare coins
Review the details behind the PCGS grading standards
The NGC Coin Explorer — a searchable catalog of American and US coins — is your convenient numismatic library. Consider this coin list to be your coin index where you can look up coins of all types to learn collectible coin facts, coin values, coin histories and more. This database of US coins provides coin information that all numismatists can reference as a coin guide when buying coins or selling coins.
A comprehensive guide of NGC-recognized varieties for both United States and World coins.
The NGC US Coin Price Guide shows average dealer retail prices based on actual, documented transactions and other information reported by collectors, dealers and auction houses for NGC-certified coins.
The World Coin Price Guide is a complete catalog of values for World coins from 1600 to date
To help collectors and dealers identify counterfeit coins, NGC has prepared lists of the most commonly counterfeited US, Chinese and world coins with diagnostic information and images from NGC’s extensive database, as well as commentary from the NGC coin grading team.
American Numismatic Association
The American Numismatic Association (ANA) is a congressionally chartered nonprofit dedicated to the study, collection, and appreciation of coins, paper currency, and other forms of numismatic items.
Numismatic News provides weekly reports on market trends and news concerning collectible U.S. coins and paper money, the source for collectors since 1952.
Collectors and investors like you turn to Coin World content regularly – monthly magazine, weekly news resource, eNewsletters, website, and mobile apps – as their favored means to stay up-to-date on numismatic collectibles and the vibrant marketplace in which they are bought and sold worldwide.
CoinWeek provides the facts that collectors can use. We tell the back stories about coins and the people that collect and sell them. We provide perspective commentary and analysis on the issues that effect the industry and the hobby we love…. And we do it all for FREE.