These 1 Oz Australian Gold Kangaroos had been been given by MintID through the Perth Mint and packaged within protected cards. The cardboard features a capsule Place for that coin and features 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/