How RARE are the HH 2 coins from 1988 u0026 1989

BIS Hallmarked Happy Birthday Personalised Silver Square Coin 999 Pure 50 gm. Could We See Anti Counterfeiting Security Features On Us Gold Silver Bullion Soon. Posted by admin on August 20, 2024.1992 Australian Kookaburra 2oz Silver Bullion Coin in Perth Mint Square Capsule1992 Australian Kookaburra 2oz Silver Bullion Coin in Perth Mint Square Capsule.