Amazon calculates a product's star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers and factors that establish reviewer trustworthiness.
Really awesome feedback from my side. Super rare and unique coin and in the best condition. 101% real. Must buy coin for coin collectors. But I want to let you know that the coin which was delivered to me was not of Calcutta mint... It was of Lahore mint.