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| 表面の説明 | Intaglio-printed note in black and blue on white paper, with the Imperial Arms of Brazil flanked by allegorical figures of Agriculture and Commerce at the upper centre. Denomination numerals and serial number appear in printed form, with the order number applied by handstamp. The text of the promise to pay is set within a formal border arrangement typical of mid-nineteenth-century Perkins, Bacon engraving. |
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| 表面の銘文 | ログイン して詳細を見る |
| 裏面の説明 | Unprinted plain paper reverse, entirely blank, consistent with Brazilian Imperial Treasury notes of this emission period. |
| 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 | ログイン して詳細を見る |
| 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 |
Brazil's Imperial Treasury turned to Perkins, Bacon & Petch at a moment when the firm's steel-engraved intaglio work was considered the gold standard for anti-counterfeiting security — the same technology they had applied to early British and colonial postage stamps. The "4th print" designation reflects successive contracted batches rather than design changes; the plates remained consistent across printings, with batch differentiation tracked administratively rather than through visible plate alterations.
Mil réis denominations of this period circulated under chronic inflationary pressure driven by coffee export booms and the financing demands of the Platine War. The 50 mil réis was a substantial sum in daily Brazilian commerce of the 1850s.