This stamp continus to be valid for postage until 1 January 2014.

Postage stamps with dual nominal value in EEK and EUR are still valid, and all postage stamps with a face value of EEK can be used by converting with the official exchange rate of Bank of Estonia 1 euro = 15.6466 kroon. Postage stamps with dual value (EEK/EUR) are valid indefinitely; postage stamps with a face value of EEK are valid until the of January 2014.

The souvenir sheet has four stamps featuring popular spring flowers grown in Estonian gardens. The tulip (Tulipa) is a genus of about one hundred species of bulbous spring flowers from the Lily family. The tulip is renewed every spring and it grows many daughter bulbs. The tulip, particularly its bulbs, contains a potent allergen. The earliest written records of tulips are from illustrations to the Bible from the early 12th century. In Estonia the tulip has been known since the end of the 18th century. The hellebore (Helleborus) comes in about twenty species. Mainly two species are grown in Estonian gardens. Featured in one of the stamps in the sheet is the purple hellebore (Helloborus purpurascens), which blossoms in our gardens in March and April. The hellebores contain toxic glycosides and cardiac stimulants are made from the roots of some hellebores. The genus Narcissus has about sixty species. The flower featured in the sheet is the poet’s narcissus (Narcissus poëticus), which is very common in Estonian gardens. Narcissuses contain poisonous alkaloids, and several species also contain ethereal oils. The flowers are grown in Estonia since the early 18th century and about 500 varieties are known today. Crocuses, of which there are about 80 species, mostly grow to about 10-15 centimetres in height. Stigmas of a purple-flowered crocus, Crocus sativus, are collected and dried as saffron. Mainly varieties and hybrids of the spring crocus (Crocus vernus) are grown in Estonia and it is also featured in the sheet.