# List of United States commemorative coins and medals (1920s)
## 1920
### Non-circulating coins

| Face value | Coin | Obverse design | Reverse design | Composition | Mintage | Available | Obverse | Reverse |
| 50¢ | Maine Centennial half dollar | Arms of Maine | Pine wreath | 90% Ag, 10% Cu | Authorized: 100,000 (max) Uncirculated: 50,028 (P) | 1920 | | |
| 50¢ | Pilgrim Tercentenary half dollar | Governor William Bradford | The Mayflower | 90% Ag, 10% Cu | Authorized: 300,000 (max 1920-1921 total) Uncirculated: 200,112 (P) | 1920 | | |

## 1921
### Non-circulating coins

| Face value | Coin | Obverse design | Reverse design | Composition | Mintage | Available |
| 50¢ | Pilgrim Tercentenary half dollar | Governor William Bradford, 1921 in field | The Mayflower | 90% Ag, 10% Cu | Uncirculated: 100,053 (P) | 1921 |
| 50¢ | Missouri Centennial half dollar | Daniel Boone | Boone with a Native American | 90% Ag, 10% Cu | Authorized: 250,000 (max) Uncirculated: 40,028 (P) | 1921 |
| 50¢ | Missouri Centennial half dollar (2*4 variety) | Daniel Boone, 2*4 in field | Boone with a Native American | 90% Ag, 10% Cu | Uncirculated: 10,000 (P) | 1921 |
| 50¢ | Alabama Centennial half dollar | Thomas Kilby and William Bibb | Adaptation of the State Seal of Alabama | 90% Ag, 10% Cu | Authorized: 100,000 (max) Uncirculated: 35,030 (P) | 1921 |
| 50¢ | Alabama Centennial half dollar (2X2 variety) | Thomas Kilby and William Bibb, 2X2 in field | Adaptation of the State Seal of Alabama | 90% Ag, 10% Cu | Uncirculated: 30,014 (P) | 1921 |

## 1922
### Non-circulating coins

| Face value | Coin | Obverse design | Reverse design | Composition | Mintage | Available |
| 50¢ | Grant Memorial half dollar (no star) | Ulysses S. Grant | Birthplace of Ulysses S. Grant | 90% Ag, 10% Cu | Authorized: 250,000 (max) Uncirculated: 95,055 (P) | 1922 |
| 50¢ | Grant Memorial half dollar (star) | Ulysses S. Grant, star between AMERICA and GRANT | Birthplace of Ulysses S. Grant | 90% Ag, 10% Cu | Uncirculated: 5,000 (P) | 1922 |
| $1 | Grant Memorial dollar (no star) | Ulysses S. Grant | Birthplace of Ulysses S. Grant | 90% Au, 10% Cu | Authorized: 10,000 (max) Uncirculated: 5,016 (P) | 1922 |
| $1 | Grant Memorial dollar (star) | Ulysses S. Grant, star between AMERICA and GRANT | Birthplace of Ulysses S. Grant | 90% Au, 10% Cu | Pattern: 1 (P) (brass or bronze) Uncirculated: 5,016 (P) | 1922 |

## 1923
### Non-circulating coins

| Face value | Coin | Obverse design | Reverse design | Composition | Mintage | Available | Obverse | Reverse |
| 50¢ | Monroe Doctrine Centennial half dollar | Conjoined heads of former presidents James Monroe and John Quincy Adams | Stylized figures representing North and South America touch at the Panama Canal | 90% Ag, 10% Cu | Authorized: 300,000 (max) Uncirculated: 274,077 S | 1923 | | |

## 1924
### Non-circulating coins

| Face value | Coin | Obverse design | Reverse design | Composition | Mintage | Available | Obverse | Reverse |
| 50¢ | Huguenot-Walloon half dollar | Gaspard de Coligny and William the Silent | Nieuw Nederlandt | 90% Ag, 10% Cu | Authorized: 300,000 (max) Uncirculated: 142,080 (P) | 1924 | | |

## 1925
### Non-circulating coins

| Face value | Coin | Obverse design | Reverse design | Composition | Mintage | Available |
| 50¢ | Lexington-Concord Sesquicentennial half dollar | The Minute Man in Concord, Massachusetts | Old Belfry in Lexington, Massachusetts | 90% Ag, 10% Cu | Authorized: 300,000 (max) Uncirculated: 162,099 (P) | 1925 |
| 50¢ | Stone Mountain Memorial half dollar | Confederate Generals Robert E. Lee and Stonewall Jackson | Eagle perched on a mountain crag; inscription to the bravery of the soldiers of the South | 90% Ag, 10% Cu | Authorized: 5,000,000 (max) Uncirculated: 2,314,709 (P) | 1925 |
| 50¢ | California Diamond Jubilee half dollar | A Forty-Niner panning for gold | Grizzly bear | 90% Ag, 10% Cu | Authorized: 300,000 (max) Uncirculated: 150,200 S | 1925 |
| 50¢ | Fort Vancouver Centennial half dollar | John McLoughlin | Frontiersman with Mount Hood in background | 90% Ag, 10% Cu | Authorized: 300,000 (max) Uncirculated: 50,028 (S) | 1925 |

### Medals

| Medal | Obverse design | Reverse design | Mintage | Available |
| Norse-American medal (gold) | Viking warrior | Viking longship | Proof: 100 (P) | 1925 |
| Norse-American medal (silver) | Viking warrior | Viking longship | Uncirculated: 6,000 (P) (thin) 33,750 (P) (thick) | 1925 |
| Norse-American medal (silver-plated bronze) | Viking warrior | Viking longship | Uncirculated: est. 60-75 (P) | 1925 |

## 1926
### Non-circulating coins

| Face value | Coin | Obverse design | Reverse design | Composition | Mintage | Available |
| 50¢ | United States Sesquicentennial half dollar | George Washington and Calvin Coolidge | Liberty Bell | 90% Ag, 10% Cu | Authorized: 1,000,000 (max) Uncirculated: 1,000,528 (P) | 1926 |
| $2.50 | United States Sesquicentennial quarter eagle | Liberty, bearing a scroll representing the United States Declaration of Independence and a torch | Independence Hall, with sunlight behind it | 90% Au, 10% Cu | Authorized: 200,000 (max) Uncirculated: 200,226 (P) | 1926 |
| 50¢ | Oregon Trail Memorial half dollar | Native American standing in front of a US map | Ox-drawn covered wagon being led west toward the setting Sun | 90% Ag, 10% Cu | Authorized: 6,000,000 (max 1926–1939 total) Uncirculated: 48,030 (P) 100,055 S | 1926 |

## 1927
### Non-circulating coins

| Face value | Coin | Obverse design | Reverse design | Composition | Mintage | Available | Obverse | Reverse |
| 50¢ | Vermont Sesquicentennial half dollar | Ira Allen | Cougar | 90% Ag, 10% Cu | Authorized: 40,000 (max) Uncirculated: 40,034 (P) | 1927 | | |

## 1928
### Non-circulating coins

| Face value | Coin | Obverse design | Reverse design | Composition | Mintage | Available | Obverse | Reverse |
| 50¢ | Oregon Trail Memorial half dollar | Native American standing in front of a US map | Ox-drawn covered wagon being led west toward the setting Sun | 90% Ag, 10% Cu | Uncirculated: 50,028 (P) | 1928 | | |
| 50¢ | Hawaii Sesquicentennial half dollar | Captain James Cook | A Hawaiian chieftain with extended arm; Waikiki Beach and Diamond Head in background | 90% Ag, 10% Cu | Authorized: 10,000 (max) Uncirculated: 9,958 (P) Proof: 50 (P) | 1928 | | |