Perth Mint, Brand new Kangaroo 5 gram gold bullion bar only. 23.60 x 14.60. Tamper – evident display card. That dimensions listed represent the bar’s maximum possible rim thickness, length, and width as per our manufacturing tolerances. As all dimensions in a single bar cannot be maximum, actual measurements will vary slightly to ensure compliance with the minimum gross weight requirement. THE PERTH MINT TAMPER-EVIDENT CASE. Produced in eight sizes, gold bullion minted bars portray a struck version of. The Perth Mint’s LBMA registered mark on the front and kangaroo-shaped motifs on the back. Each minted bar comes. Housed in tamper-evident packaging which shows the word VOID around the edge of the blister if the card has been prized opened. The card is charcoal-coloured with a dark, watermark-like image of the Mint’s stylised swan logo.