Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.

Presidential Dollar - John Adams
The second coin in the U.S. Presidential Dollar series, honoring John Adams, also affected by a notable doubled and missing edge-lettering error alongside the Washington issue.
United States
1971-S Eisenhower Silver Dollar (Blue Ike)
A 40% silver uncirculated Eisenhower dollar from San Francisco, nicknamed the Blue Ike for the blue-tinted envelope the U.S. Mint used to package it for collectors.
United States
GSA Morgan Dollar
Morgan silver dollars, mostly from Carson City, sold by the U.S. General Services Administration in the 1970s in distinctive hard plastic holders with a black or brown outer box.
United States
2010 Yellowstone America the Beautiful Quarter
The second release in the America the Beautiful Quarters series, depicting the iconic Old Faithful geyser erupting in Yellowstone National Park, Wyoming.
United States
2004 Texas State Quarter
A 2004 entry in the 50 State Quarters Program depicting an outline of Texas with a lone star, honoring the state's independent history as the Lone Star State.
United States
1999 New Jersey State Quarter
One of the original five 1999 State Quarters, honoring New Jersey with a rendition of Washington Crossing the Delaware, launching the wildly popular 50 State Quarters Program.
United States
1999 Pennsylvania State Quarter
The second release in the U.S. Mint's 50 State Quarters Program, honoring Pennsylvania with a design featuring the state's outline, a keystone, and the Commonwealth statue.
Commemorative
1999 Delaware State Quarter
The debut coin of the U.S. Mint's 50 State Quarters Program, honoring Delaware as the first state to ratify the Constitution, featuring Caesar Rodney's historic ride.
Commemorative
1838 Seated Liberty Quarter (No Drapery)
The first-year Seated Liberty quarter, the 1838 No Drapery issue introduced Christian Gobrecht's new design before a drapery fold was added at Liberty's elbow in 1840.
United States
1921 Standing Liberty Quarter
A low-mintage key date of the Standing Liberty quarter series struck only at Philadelphia, valued for its scarcity across all grades.
United States
1917 Type 1 Standing Liberty Quarter
The original 1916-1917 Standing Liberty quarter design showing Liberty with an exposed right breast, before the design was modified later in 1917 for modesty.
United States
1918/7-S Standing Liberty Quarter Overdate
One of the most famous overdate varieties in U.S. coinage, where a leftover 1917 die was re-punched with an 1918 date, leaving remnants of the 7 visible beneath the 8.
Errors & Varieties
1913-S Barber Quarter
A famous low-mintage key date near the end of the Barber quarter series, prized by collectors despite its worn survivors due to its very small original production.
United States
1896-S Barber Quarter
One of the three classic key dates of the Barber quarter series, valued for its low original mintage and the difficulty of finding problem-free survivors.
United States
1875-S Twenty-Cent Piece
The most commonly encountered date in the short-lived US twenty-cent piece series, struck in large numbers at San Francisco in the coin's debut year.
United States
1970 No S Proof Roosevelt Dime
A proof Roosevelt dime struck without its 'S' mintmark, one of a series of similar San Francisco die errors found across several years in the late 1960s and 1970s.
Errors & Varieties
1889-CC Morgan Dollar
A major key date among Carson City Morgan dollars, with a low mintage of roughly 350,000 coins, making it one of the toughest CC-mint issues to find.
United States
1878 Morgan Dollar (8 Tail Feathers)
The first-year Morgan dollar variety showing the eagle with eight tail feathers, quickly replaced mid-year by the standard seven-feather design.
United States
1921 Peace Dollar (High Relief)
The debut issue of the Peace dollar, struck in dramatic high relief that proved difficult to mint, commemorating peace after World War I.
United States
Capped Bust Half Dollar
A silver half dollar (1807-1839) designed by John Reich, showing Liberty in a cap and drapery, minted in large numbers and popular with type and variety collectors.
United States
Seated Liberty Half Dollar
A 90% silver half dollar (1839-1891) featuring Liberty seated on a rock holding a shield and pole, designed by Christian Gobrecht.
United States
Eisenhower Dollar
A large copper-nickel clad dollar (1971-1978) honoring President Dwight D. Eisenhower and commemorating the Apollo 11 moon landing on its reverse.
United States
1913 Barber Quarter
A lower-mintage date in the Barber Quarter series designed by Charles E. Barber, notable among collectors for the relatively small number struck at the Philadelphia Mint that year.
United States
1965 Silver Washington Quarter (Transitional Error)
An extremely rare transitional error in which a 1965-dated quarter, meant to be struck in new copper-nickel clad metal, was accidentally struck on a leftover 90% silver planchet.
Errors & Varieties