Who is behind Coin Mint Check

Coin Mint Check is published by Radif Partners, a company that builds free tools on public data. This site is for people who have found an old penny, a silver dime or a jar of coins and want a straight answer: what it is made of, how many were made and what the metal is worth today.

What the site does

It reads the year and mint mark of a coin and returns the number struck at that mint from the Mint’s own tables, the alloy and weight, the silver content and the metal value at the price of the moment. It converts junk silver face value into ounces, tells a copper 1982 cent from a zinc one by weight, ranks the lowest mintages of each series, and explains the end of the penny from the Mint’s own announcement. Everything is free, needs no account, and what you type stays in your browser.

Where the figures come from

From official publications: the Bureau of the Mint’s 1981 tables of coins manufactured from 1793 to 1980, the Mint’s annual reports, production pages, coin specifications, penny FAQs and press releases, and the coin regulations of 31 CFR Part 82. Metal prices come from the World Bank’s monthly commodity prices and from a live price service. Every page links to the sources behind it, and the method page explains every computation.

What we are not

We are not the United States Mint, the Treasury, a coin dealer, an auction house, a grading service or an appraiser. We cannot see your coin, authenticate it or make an offer for it. The site uses no official seal or logo.

How the site is paid for

The site sells nothing, buys no coins, takes no commission, collects no contact details and links to no dealer. If advertising is added one day, it will never sit inside a tool and cannot use what you type, which never leaves your browser.

Tell us when something is wrong

Write to contact@coinmintcheck.com with the page and the figure. The editorial policy explains how a correction is made and dated. The site has 32 pages of guides and tools.

Figures last checked on October 26, 2026.