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 ...

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 ...

Minting coins isn't exactly an exact science. Even though most coins are perfect and uniform, small mistakes can result in error coins that are super valuable and ...

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

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