"Dies for minting 1-kroon coins were made by cloning the preliminary mother dies. As the edge of the 1998 coins is interrupted mill and was slightly arched and the dimension is smaller than the coins made in 1992 - 1995, the higher edge of the coin turned out to be quite thin. Since 2000 the coins had a slightly wider edge." (Coins of the Republic of Estonia 1992 - 2002)