Discover rare 1990 penny errors, their values, and how apps like CoinKnow help identify valuable coins instantly.

Turns out these common minting mistakes from 1979 are worth up to $5,000 - and you might have one sitting in your change jar ...

Explore the 1967 quarter error list, including DDO, DDR, off-center, wrong planchet, and rare silver errors, plus values and ...

Explore the most valuable 1970 quarter errors, including overstrikes, doubled dies, off-center strikes, and wrong planchet ...

The late painter and PBS icon Bob Ross famously said there are no such things as mistakes with art, only “happy accidents.” When it comes to the art of coin production, those happy accidents can make ...

As with just about any asset, a coin’s value is determined by its market demand. This means that coins in short supply often see higher demand — and higher values. With coins, supplies are limited ...

CoinKnow is our top pick for the best coin identifier app, offering unmatched accuracy that serious collectors need. This innovative coin identifier app is one of only two on the market that ...

Despite 11 billion minted, the 1988 Lincoln Penny offers rare errors—like the Doubled Ear (worth up to $3,000+), Flared G, ...

As with just about any asset, a coin’s value is determined by its market demand. This means that coins in short supply often see higher demand — and higher values. With coins, supplies are limited ...

CoinKnow is our top pick for the best coin scanner app, offering unmatched accuracy that serious collectors need. This ...