These One oz Australian Gold Kangaroos had been been given by MintID in the Perth Mint and packaged within safe cards. The cardboard includes a capsule space for the coin and includes a 128-bit encrypted microchip. If tampered with, the microchip “dies” and renders a tampered lead to the MintID https://smart-money-empire.com/product/buy-australian-kangaroo-1-oz-gold-coin/