カタログ
| 表面の説明 | Predominantly blue on a multicolour underprint. A central vignette of King Tupou VI faces to the right within a decorative medallion, flanked by the Tongan coat of arms. Bilingual inscriptions in English and Tongan appear above and below, with the denomination stated in numerals and text. |
|---|---|
| 表面の銘文 | ログイン して詳細を見る |
| 裏面の説明 | ログイン して詳細を見る |
| 裏面の銘文 | ログイン して詳細を見る |
| 署名 | ログイン して詳細を見る |
| 偽造防止技術 | Polymer substrate, Simulated security thread |
| 偽造防止の説明 | ログイン して詳細を見る |
| バリエーション | ログイン して詳細を見る |
| コメント |
Tonga's switch to polymer for this denomination follows a broader Pacific trend — the Reserve Bank made the transition partly in response to the islands' humid climate, which degrades cotton-fibre notes unusually fast given low circulation velocity in outer island communities. De La Rue's polymer substrate here carries a simulated security thread, a visual mimicry of the metallic windowed threads used on higher-security issues rather than an actual embedded feature — a cost-driven compromise that collectors and counterfeiters alike have noted.
TBB#227 is recent enough that secondary market data remains thin.