18 PC. AUSTRALIAN SILVER $1 AND $5 KOOKABURRA COINS: Approx. 18 Ounces. Comprising; 2- 1990 $5 Kookaburra Coins, 8- 1991 $5 Kookaburra Coins, & 8- 1992 $1 Kookaburra Coins. Each of 1 oz. Pure Silver. All reside in a plastic case except the two 1990 coins. All ungraded, most appear uncirculated.