Denio Marca

Dollar coins have always held a special place in American coinage. From early silver issues to modern commemoratives, these coins reflect the nation’s history and artistry. While most examples are worth only their face value, certain rare varieties have shocked collectors by reaching values well beyond thousands, even millions. In 2026, three rare dollar coins … Read more

The Washington Quarter has been a cornerstone of American coinage since 1932, originally minted to commemorate the 200th anniversary of George Washington’s birth. While most quarters are common pocket change, certain rare varieties and error coins have become highly sought after by collectors. In 2026, some Washington Quarters are valued at thousands of dollars, making … Read more

The Sacagawea Dollar, first minted in 2000, is one of the most distinctive modern U.S. coins. Featuring the Shoshone woman Sacagawea, who guided the Lewis and Clark expedition, the coin was designed to honor her contribution to American history. While most Sacagawea Dollars are common and circulate at face value, certain rare editions and experimental … Read more

The Washington Quarter, first minted in 1932 to honor the bicentennial of George Washington’s birth, has become one of the most collected coins in American numismatics. While millions were produced over the decades, certain rare dates, mint marks, and varieties have achieved legendary status among collectors. In 2026, some Washington Quarters are valued at over … Read more

The Sacagawea Dollar, first released in 2000, was designed to honor Sacagawea, the Shoshone woman who played a vital role in guiding the Lewis and Clark expedition. While most of these coins circulate at face value, certain rare varieties and error issues have become highly valuable. In 2026, collectors continue to pursue these elusive treasures, … Read more

1982 No Mint Mark Dime is one of the most fascinating modern coin mysteries in American numismatics. Struck in Philadelphia without its usual mint mark, this coin slipped into circulation unnoticed and has since become one of the most sought‑after rarities. Collectors often refer to it as a “circulation accident,” and its story continues to … Read more

The 1776–1976 Bicentennial Quarter is one of the most celebrated coins in American history. Issued to mark the 200th anniversary of independence, it features a colonial drummer on the reverse and the dual date “1776–1976.” Millions were produced, but in 2026 collectors are still fascinated by rare varieties, minting errors, and pristine silver-clad editions that … Read more

The Washington Quarter has been a staple of American coinage since 1932, originally issued to commemorate the 200th anniversary of George Washington’s birth. Over the decades, the design has evolved, mintages have varied, and rare varieties have emerged. While most quarters are worth only twenty-five cents, certain dates and mint errors have become highly collectible. … Read more

The Jefferson Nickel has been a staple of American coinage since 1938, featuring President Thomas Jefferson on the obverse and his home, Monticello, on the reverse. While most nickels are worth only five cents, certain rare dates, minting errors, and pristine examples have become treasures worth thousands. In 2026, collectors continue to chase these elusive … Read more

The Lincoln Wheat Pennies, first introduced in 1909, remains one of the most iconic coins in American numismatics. While most pennies are common and circulate at face value, certain rare varieties have stunned collectors with values reaching hundreds of thousands or even millions of dollars. In 2026, five extraordinary Lincoln Pennies stand out as treasures … Read more