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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 | 登录 以查看详情 |
| 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 | Sir Ahmadu Bello portrait and denomination numeral; segmented reflective security thread embedded in the paper |
| 变体 | 登录 以查看详情 |
| 备注 |
The signature placement variation on the 2010 dated notes is one of the more catalogued production anomalies in this series. Two distinct states exist: one with signatures printed at a greater distance from the denomination prefix — covering prefix range AA/98 through AG/88 — and a second, error state where the signatures appear closer to the denomination, documented at prefix AG/66. The AG/66 error overlaps the prefix range of the standard distant-signature printing, which complicates attribution when prefix alone is used to differentiate the two.