Which of these was the official currency of Estonia before the euro became the sole legal tender?

It's written on the note shown in the picture: sada krooni, which probably means 100 kroons.

Player #25874027, it was the Kroon and euro in circulation at the same time . Until the euro replaced the kroon completely.

Krooni is on the money

Think it should be 1st January 1992 to 14 January 2011 . Creating a currency for two weeks would bean expensive undertaking.