Yellow tube sponges get their name from their hollow, chimney-like body form. They pump huge quantities of water through their bodies, filtering out the tiny particles on which they feed. At shallow depths yellow tube sponges have a shape which resembles a cactus. In deeper waters, the sponges develop long, straight tubes. Their vivid yellow colour is probably due to special fluorescent pigments in the sponge tissue.
Key selling points
- First coin oversold
- Actual theme in nature protection
- Beautiful coins and designs
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Specifications
| Article ID | TV1102 |
| Country | Tuvalu |
| Year | 2011 |
| Face Value | 1 Dollar |
| Metal | Silver |
| Weight | 1/2 oz (15.5 g) |
| Fineness | .925 |
| Diameter | 35 mm |
| Quality | Proof |
| Mintage | 1000 pcs. |
| Scope of Delivery | Capsule, Box / Case, Certificate of Authenticity |
| Special Features | Coloured |
| Availability | Issued Available |
All coins in the Coral Protection series
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