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| Number | Y# 422 |
|---|---|
| Country | Thailand |
| Period | King Rama IX (1986 - 2017) |
| Ruler | Rama IX |
| Currency | Thai baht |
| Coin type | Commemorative coins |
| Denomination | 20 baht |
| Currency rate | 20 THB = 0.6 USD |
| Year | BE 2547 (2004) - ๒๕๔๗ |
| Subject | 72nd Anniversary - Birth of Queen Sirikit |
| Edge type | Reeded |
| Shape | Round |
| Alignment | Medal (0°) |
| Composition | Copper-Nickel |
| Weight (g) | 15 |
| Diameter (mm) | 32 |
| Thickness (mm) | 2.5 |
![]() | Royal family Legend |
|---|
![]() | Anniversary Symbols Legend |
|---|
| Mint | Mintage | ||
|---|---|---|---|
| UNC | BU | Proof | |
| Thailand, Pathum Thani | 600.000 | + | 10.000 |
| ๒๕๔๗ | (2004) | $ ***** |
