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| 正面描述 | Fourth crowned effigy of Queen Elizabeth II facing right, wearing the Girls of Great Britain and Ireland tiara, as modeled by Ian Rank-Broadley. The legend encircles the portrait with the issuer name, metal fineness, weight denomination, and regal inscriptions. The date 2020 appears below the effigy in the lower field. |
|---|---|
| 正面文字 | 登录 以查看详情 |
| 正面铭文 | 登录 以查看详情 |
| 背面描述 | 登录 以查看详情 |
| 背面文字 | Latin |
| 背面铭文 | 登录 以查看详情 |
| 边缘 | 登录 以查看详情 |
| 铸币厂 | 登录 以查看详情 |
| 铸造量 | 登录 以查看详情 |
| 附加信息 |
The Ōkārito kiwi — Apteryx rowi — was only recognised as a distinct species in 2003, separated from other brown kiwi populations after mitochondrial DNA analysis revealed deep genetic divergence. By 2020, the wild population around the Ōkārito forest on the West Coast of the South Island had recovered to roughly 600 individuals from a low of perhaps 160, largely through Operation Nest Egg, which pulls eggs from the wild for incubation and rearing in predator-free sanctuaries before release.
The black proof finish on this issue comes from a specialized lacquer or oxidation process applied over the gold plating — a technique that requires the underlying silver blank to be struck to proof standard before any surface treatment.