Stamp: The rivers (Tonga 1990)
The rivers (Tonga 1990)
01 January (Tonga ) within release Stamp Duty goes into circulation Stamp The rivers face value 40 Tongan seniti
Stamp is square format.
32s Niuafo'ou postage stamp of 1989 surcharged "40s XX STAMP DUTY" in blue Despite the Niuafo'ou inscription, this stamp was valid throughout Tonga.Also in the issue Stamp Duty:
- Stamp - Banded Rail (Gallirallus philippensis) face value 60;
- Stamp - Giant Forest Honeyeater (Gymnomyza viridis) face value 5;
- Stamp - Giant Forest Honeyeater (Gymnomyza viridis) face value 5;
- Stamp - Jurassic era stegosaurus face value 10;
- Stamp - Niuafo'ou Megapode (Megapodius pritchardii) face value 15;
- Stamp - Niuafo'ou Megapode (Megapodius pritchardii) face value 80;
- Stamp - Niuafo'ou Megapode (Megapodius pritchardii) face value 2;
- Stamp - Purple Swamphen (Porphyrio melanotus) face value 10;
- Stamp - Purple Swamphen (Porphyrio melanotus) face value 20;
- Stamp - Purple Swamphen (Porphyrio melanotus) face value 1;
- Stamp - Red-headed Parrotfinch (Erythrura cyaneovirens) face value 50;
- Stamp - Silurian plants face value 40;
- Stamp - The Earth's crust face value 10;
- Stamp - The Earth's crust face value 10;
- Stamp - The Earth's surface face value 10;
- Stamp - The Earth's surface face value 10;
- Stamp - The Earth's surface face value 10;
- Stamp - The mountains face value 10;
- Stamp - The rivers face value 40;
- Stamp - The surface cools face value 10;
- Stamp - Volcanic formations face value 80;
- Stamp - White-collared Kingfisher (Todirhamphus sacer) face value 40;
- Stamp - White-collared Kingfisher (Todirhamphus sacer) face value 5;
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Data entry completed
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| Stamp The rivers in digits | |
| Country: | Tonga |
| Date: | 1990-01-01 |
| Print: | Offset lithography |
| Perforation: | comb 14¼ |
| Emission: | Revenue |
| Format: | Stamp |
| Face Value: | 40 Tongan seniti |
Stamp The rivers it reflects the thematic directions:
Geology (from Ancient Greek γῆ (gê) 'earth', and λoγία (-logía) 'study of, discourse') is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology. It is integrated with Earth system science and planetary science.
Prehistory, also called pre-literary history, is the period of human history between the first known use of stone tools by hominins c. 3.3 million years ago and the beginning of recorded history with the invention of writing systems. The use of symbols, marks, and images appears very early among humans, but the earliest known writing systems appeared c. 5,200 years ago. It took thousands of years for writing systems to be widely adopted, with writing spreading to almost all cultures by the 19th century. The end of prehistory therefore came at different times in different places, and the term is less often used in discussing societies where prehistory ended relatively recently.
A river is a natural freshwater stream that flows on land or inside caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may run dry before reaching the end of its course if it runs out of water, or only flow during certain seasons. Rivers are regulated by the water cycle, the processes by which water moves around the Earth. Water first enters rivers through precipitation, whether from rainfall, the runoff of water down a slope, the melting of glaciers or snow, or seepage from aquifers beneath the surface of the Earth.
