Mint piece of a very rare coin, appreciated with high rarity grades by Ivanauskas and Kopicki....
The coin appreciated with the highest, among those given so far, note in NGC grading.
Obverse: an eagle with 10 feathers in each wing, with a spread tail, with four-pawed legs, with its head bent heraldically to the right;
Reverse: a pennant to the left, with the date 1547 below it;