Netherlands Antillean guilder. The Netherlands Antillean guilder was the currency of the Netherlands Antilles, and later of Cura??ao and Sint Maarten, which until 2010 formed the Netherlands Antilles along with Bonaire, Saba, and Sint Eustatius. It was subdivided into 100 cents. The guilder was replaced on 1 January 2011 on the islands of Bonaire, Saba and Sint Eustatius by the United States dollar.