5 Caribbean Guilder - Willem-Alexander

The Caribbean guilder launched in 2025 as the replacement currency for the Netherlands Antillean guilder, itself a currency that had outlived the country it was named after by over a decade — the Netherlands Antilles dissolved in 2010, yet its guilder persisted through the transition period as Curaçao and Sint Maarten established their shared central bank. The decision to use a trimetallic steel construction rather than the bimetallic nickel-brass combinations common to the region reflects both cost considerations and anti-counterfeiting priorities for a currency serving two islands with a combined population under 200,000.