Information about refinery: UGDO
UGDO (1875 - 1986)
The Swiss company Usine Genevoise de Dégrossissage d'Or (UGDO) was founded in Geneva in 1875. In addition to jewelry and semi-finished goods for the manufacture of watches, industrial bars were also produced for the LBMA as well as smaller gold and silver investment units. After 1939, its silver and gold bars were stamped with the abbreviation UGDO. In 1986 the company was taken over by Metalor Technologies SA. |
Coin Types predominantly or exclusively minted by UGDO (4):
| Country | Currency | Coin Type | From | To |
|---|---|---|---|---|
| Biafra | Biafran Pound | Twenty Five Pounds | 1969 | 1969 |
| Biafra | Biafran Pound | Ten Pounds | 1969 | 1969 |
| Biafra | Biafran Pound | Five Pounds | 1969 | 1969 |
| Biafra | Biafran Pound | Two Pounds | 1969 | 1969 |
|
Coins struck by UGDO (5):
| Country | Year | Name | Mintage | Mint Mark |
|---|---|---|---|---|
| Biafra | 1969 | Twenty Five Pounds 1969 | 3,000 | No mint mark |
| Biafra | 1969 | Ten Pounds 1969 | 3,000 | No mint mark |
| Biafra | 1969 | Five Pounds 1969 | 3,000 | No mint mark |
| Biafra | 1969 | Two Pounds 1969 | 3,000 | No mint mark |
| Biafra | 1969 | Pound 1969 (Gold) | 3,000 | No mint mark |
|
UGDO: Details
| From Year | 1875 |
|---|---|
| To Year | 1986 |
| Country | Switzerland |
| Location | Geneva |
| Company type | Refinery |
 |
| A Guide Book of United States Coins 2025 Redbook |
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Mint Marks used by: UGDO
| No mint mark |
|---|