20 tenge Defective

We have found this defective coin in the bank bag among 200 other 20 tenge coins.

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Obverse: 
On the top of the coin face you can see a national Emblem of Kazakhstan and a '20 ТЕҢГЕ' face value underneath in two lines, to the right of the Emblem a 'ҚҰБ' Kazakh legend. To the left and the right of the face value a national design element. A 'ҚАЗАҚСТАН ҰЛТТЫК БАНКI' Kazakh legend as a circumference.
Reverse: 
In the center of the underside you can see an imprint of Abu Nasir Al-Farabi portrait. On the circumference there is a 'ҚАЗАҚСТАН РЕСПУБЛИКАСЫ' Kazakh legend separated with the engrave Year in the bottom.
Country: 
Catalog ID: 
KZ19DF1
Krause ID: 
KM# 11
Value: 
€7
Quality: 
Face value: 
Weight: 
11.11g
Diameter: 
21mm
Thickness: 
2mm
Year: 
Shape and style: 
Designer: 
Designer: 
Designer: 
Designer: 
Source of information: