Genuine

Forgery B

1) There are four tiny dots centered below the line at lower center of stamp. See red arrow. 

2) There is one dot above the fourth dots in top row of dots. See red arrow.  

3) There are two dots between the eagle's heads.

4) The feathers on the wings and ribbon folds have a characteristic shading.

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1) There are no dots centered above or below the line at lower center of stamp. 

2) There are many dots above central row of dots. 

3) There are many small dots between the eagle's heads.

4) The feathers on the wings and ribbon folds lack the characteristic shading.