For collectors and enthusiasts alike, the prospect of discovering a hidden gem within their coin collections is an ongoing pursuit.
Among the most sought-after coins are those with unique features, historical significance, or limited mintages.
In recent years, a particular quarter has garnered attention for its potential value of up to $95,000.
But what makes this seemingly ordinary coin so uncommon, and how can you determine if you own one?
The quarter in question is the 1970-S Proof Washington Quarter.
In the case of U.S. coins, mint marks such as "D" for Denver and "S" for San Francisco are commonly used.
This error was not discovered until after some of the coins had already entered circulation, making them exceedingly rare and highly desirable among collectors.