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| 正面描述 | Predominantly blue polymer note with a transparent security window strip at the right margin. A vignette of educator and statesman Mauro Fernández Acuña occupies the central portion, set against an architectural underprint of the Colegio Superior de Señoritas in San José. An outline map of Costa Rica in color-shifting ink appears at the left. |
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| 正面铭文 | 登录 以查看详情 |
| 背面描述 | The reverse carries a vivid underwater scene centered on a coral reef habitat, with a bull shark (Carcharhinus leucas) as the dominant figure. Sea pens (Pennatulacea) and a lagoon sea star (Asteroidea) are rendered in naturalistic detail within the composition. Denomination and issuer legends appear in the upper and lower registers. |
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Costa Rica moved its higher denominations to polymer substrate starting in the mid-2010s, contracting Oberthur Fiduciaire as the note transitioned away from cotton paper. The 2018 date places this within the second generation of Costa Rican polymer issues, after the format had already proven itself in smaller denominations — the 2000 Colones being among the more heavily circulated values in daily commerce.
The transparent window integrated into the polymer substrate functions as both a security feature and a structural element of the design, a technique Oberthur had refined through contracts across multiple Latin American markets by this period.