Understand Coin Grades
Learn the order of the Sheldon scale and the terms used to describe coin condition. Explore how wear, luster, strike, and surface preservation affect the way a coin is evaluated.
Explore Coin Grading →Coin Collecting · History · Research
Every coin has something to teach.
A date. A mintmark. An old grading holder. A design that outlasted the country that issued it. NumisMaverick is a place to study those details and better understand the coins we collect.
Explore coin grading, U.S. and world coin references, free metal-content calculators, and notes from a collector’s ongoing education in numismatics.
A collector’s notebook, made public.
These resources are here to encourage curiosity, support research,
and make the hobby easier to understand.
Start Here
Build your collecting knowledge.
New to coins or revisiting the fundamentals? Start with identification, condition, and composition—the building blocks of numismatic research.
Know What You’re Looking At
Start with the issuing country, denomination, date, and mintmark where present. Compare inscriptions, designs, and specifications with reliable references.
Explore Coin Resources →Understand Metal Content
Learn how a coin’s weight and fineness determine its contained metal. Keep metal value and collectible value separate when studying a coin.
Explore the Calculators →Free Numismatic Tools
Understand the metal inside the coin.
Explore the relationship between coin specifications, metal content, and a market price you enter. Calculator results are educational estimates of contained metal value, not appraisals or transaction quotes.
U.S. Silver Coin Calculator
Study the silver content of U.S. dimes, quarters, half dollars, silver dollars, and other issues.
Open Silver Calculator →U.S. Gold Coin Calculator
Explore contained gold in pre-1933 U.S. coins, American Gold Eagles, American Gold Buffalos, and commemorative issues.
Open Gold Calculator →World Silver Coin References
Compare silver specifications and estimated metal values across a range of world coin issues.
Explore World Silver →U.S. Silver Proof Set Content
Compare the silver content of different U.S. Mint proof sets using a silver price you choose.
Explore Silver Proof Sets →Copper Penny Calculator
Explore the copper content of copper-alloy Lincoln cents. Check composition carefully: 1982 includes both copper-alloy and copper-plated zinc issues.
Open Penny Calculator →Track My Stack
Organize personal metal-content records and explore the gold, silver, and copper represented in your collection.
Open Track My Stack →Collector Research
Look closer. Ask better questions.
Numismatics brings together history, art, manufacturing, and economics. Follow the details that make a coin interesting, from its original purpose to the way collectors study it today.
Series & Specifications
Explore U.S. coin resources covering composition, denominations, design types, and the details that help identify an issue.
Browse Coin Resources →Vintage Grading Holders
Study early PCGS, NGC, ANACS, and other holders as artifacts of the hobby’s evolving approach to authentication and grading.
Read the Research Blog →Coins Beyond U.S. Borders
Explore circulating silver, changing compositions, national symbols, and the historical context behind world coins.
Explore World Coin References →The Personal Collection
Study the details. Discover the story.
My collecting interests tend to follow questions. What makes this variety different? When was this holder used? Why did a country change its coinage? What can a worn coin tell us about the people who used it?
NumisMaverick is a place to document that process. Collection notes and photographs support education, comparison, and discussion, with an emphasis on what each piece can teach.
Follow the Collection on Instagram →Related Projects
More ways to explore numismatics.
Related projects extend the same interest in reference tools, coin history, and the collector community.
eCOINomics
Calculators, charts, and reference tools for studying coins and physical metals.
FLCSX
A Florida coin-show calendar and directory helping collectors discover events and connect with the hobby.
NümisTR
A bilingual reference project focused on Turkish Republic coinage, silver issues, and collector resources.
About NumisMaverick
A student of the hobby.
NumisMaverick is: calculators, reference pages, collection notes, and research developed through an ongoing interest in coins and numismatic history.
I am a member of the American Numismatic Association and serve as Secretary of the West Hernando Coin Club. Community involvement is part of how I continue learning and sharing the hobby with others.
The goal is simple: study carefully, document what I learn, and create resources that make coin collecting easier to understand and more enjoyable to explore.
Collector Correspondence
Share a question or research lead.
Found an error in a calculator? Have a source that could improve a reference page? Want to suggest an educational topic? Send a note.
NumisMaverick@protonmail.com