I don't have the experience to question your coins authenticity, so would be inclined to simply trust CNG and congratulate you, until someone with far greater experience said otherwise. That being said...one observation. The sprig being held up on the reverse does seem far more paltry in style and substance than others I have seen in searches and would simply ask if that is part of the normal variation for this type?
(I see Pishpash has just beat me to this observation...I will leave my agreement up anyway

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