Latvian lats Lūsis and Jānis Strupulis. All banknotes are 130 × 65 mm in size. They were printed by Giesecke & Devrient GmbH in Germany and were designed by Imants Žodžiks and Valdis Ošiņš. The lats was the fourth-highest-valued currency unit after the Kuwaiti dinar, Bahraini dinar, and the Omani rial at the end of its circulation. The 500 latu note was the world's third most valuable banknote after the $10,000 Singapore note and the 1,000 Swiss franc note. Latvian lats The lats (plural: "lati" (2–9) "latu" (10 and more)), ISO 4217 currency code: LVL or 428) was the currency of Latvia
Currency mostly paper, but Australia's Commonwealth Scientific and Industrial Research Organisation developed the world's first polymer currency in the 1980s that went into circulation on the nation's bicentenary in 1988. Now used in some 22 countries (over 40 if counting commemorative issues), polymer currency dramatically improves the life span of banknotes and prevents counterfeiting. Currency use is based on the concept of lex monetae; that a sovereign state decides which currency it shall use. Currently, the International Organization for Standardization has introduced a three-letter system of codes (ISO 4217) to define currency (as opposed to simple names or currency signs), in