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Recent banknote series show increased use of clear windows

Data reveals changing patterns in application of security features

Central banks that issued new banknotes between 2021 and 2026 are more likely to make use of clear sections or transparent windows as a security feature, the Currency Benchmarks 2026 find.

Eleven (64.7%) of 17 respondents that produced new banknote series in those years say they incorporate the security feature in their banknote designs. Less than half of those that produced between 2015–2020 (45.5%) utilise the security enhancement. Central banks whose new banknotes were issued between 2009

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