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| 背面描述 | Central vignette of the Great Wall winding through mountainous terrain, executed in fine line engraving with cross-hatched shading. Denomination numeral 5 appears in each corner within guilloche panels, with vertical characters 练功 at left and 专用 at right. Printer's imprint in small characters along the lower centre border. |
| 背面铭文 | ZHONGGUO YINHANG 5 练功 专用 保定钞票纸厂证券分厂印刷 (Translation: Practice use only. Printing by Baoding Banknote Paper Factory Securities Branch.) |
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Teller training notes issued by the Bank of China were produced for internal use — circulated among bank staff to practice counting, sorting, and authentication procedures without risking live currency. The Baoding Securities Branch, part of the state printing infrastructure, produced these alongside genuine security paper stock, which gives them legitimate production credentials even though they were never intended as legal tender.
Collector interest in these is relatively recent. Because they were treated as disposable training materials, survival rates are uneven.