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| 正面描述 | 登录 以查看详情 |
|---|---|
| 正面铭文 | 登录 以查看详情 |
| 背面描述 | The central vignette presents the Ulster Bank coat of arms — a heraldic shield supported by two lions rampant with the motto ribbon 'NIHIL IMPOSSIBILE ERIT VOBIS' below — flanked left and right by the denomination numerals '£20' in intaglio. Provincial heraldic arms appear in each of the four corners within the ornate guilloche border. |
| 背面铭文 | 登录 以查看详情 |
| 签名 | 登录 以查看详情 |
| 防伪类型 | Watermark, Security thread |
| 防伪描述 | 登录 以查看详情 |
| 变体 | 登录 以查看详情 |
| 备注 |
Ulster Bank Limited, a subsidiary of NatWest from 1917, occupied an unusual position in the British banking system — a Northern Irish commercial bank retaining full note-issuing rights while operating under the regulatory umbrella of a London clearing bank. The 1990 series came at a period of considerable political sensitivity around Northern Irish identity, and the bank's decision to maintain distinctly regional issues rather than deferring to NatWest branding was commercially deliberate.
De La Rue's security thread specification for this period was the early embedded metallic strip, predating the windowed thread technology that became standard later in the decade.