Stamp: Barrage - Overprint in Black (Angola 1945)
Barrage - Overprint in Black (Angola 1945)
01 January (Angola ) within release Portuguese Empire goes into circulation Stamp Barrage - Overprint in Black face value 50 Angolan centavo
| Stamp Barrage - Overprint in Black in catalogues | |
|---|---|
| Michel: | Mi:AO 302 |
Stamp is square format.
Also in the issue Portuguese Empire:
- Stamp - Barrage - Overprint in black face value 5;
- Stamp - Barrage - Overprint in Black face value 50;
- Stamp - Heinrich der Seefahrer (1394-1460) - Overprint in red face value 50;
- Stamp - Heinrich der Seefahrer (1394-1460) - Overprint in black face value 50;
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Data entry completed
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| Stamp Barrage - Overprint in Black in digits | |
| Country: | Angola |
| Date: | 1945-01-01 |
| Print: | Recess and Typography |
| Format: | Stamp |
| Face Value: | 50 Angolan centavo |
Stamp Barrage - Overprint in Black it reflects the thematic directions:
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into specific land regions.
