100 Dollars - Teller Practice Banknote

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背面描述	Central vignette of a scientist at a microscope alongside an insulin vial, evoking Canada's medical innovation legacy, set against a warm amber and gold guilloche underprint with maple leaf motifs. A greyscale portrait appears at upper left. Blue overprint carries the Chinese 练功券 / 票样 / 练功专用禁止流通 teller-practice legends.
背面铭文	练功券票样练功专用禁止流通 Canada 100 INNOVATION MÉDICALE MEDICAL INNOVATION INSULIN INSULINE (Translation: Practice banknote Sample For practice use only, no circulation allowed.)
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备注	Chinese banks periodically issue polymer training notes for teller education — staff practice handling, verifying, and processing notes on material that mimics real-currency feel without introducing genuine legal tender into the training environment. These are institutional items, not issued through public channels, and they circulate only within bank branch training programs before being destroyed or archived. Polymer substrate here is the point of interest: China began expanding domestic polymer printing capacity significantly after switching its 2019-series Renminbi to polymer for lower denominations, making in-house production of training material on the same substrate a practical extension of that infrastructure.

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