Estonia 1922 - 1939 Top Mint Errors

Set Description
Estonian mint errors collection from the period of 1922 till 1939. Both republic and reform coinage (Complete pre WWII Estonia). Each coin will be listed only once. Only the most interesting mint error I've been able to find will be listed if there are more than one available.

Set Goals
The goal of this collection is to fill at least 80% of the slots. In total there are 22 coins. As some of them are hard to find even without an error I'm looking to find at least 18 mint errors. 18 mint errors will make this set 81% complete.