The Proof Kookaburra is the prize of this set as this is the first time the Perth Mint has struck a 1 oz Proof Kookaburra with a matching design to the current BU coin.</br>Previous Proof versions have been issued as specialty releases for select coin shows only.</br>This set is a must-have for Perth collectors.</br>The Proof Kookaburra can only be found in these exclusive sets and has a strict mintage of just 1 000 coins!The BU coin comes in its standard Proof Like finish that is familiar to investors and collectors.</br>The BU Kookaburra has always featured this Proof Like finish since its inception in 1990.Set Highlights: Extremely limited mintage of 1 000 sets exclusive to APMEX this is the first set of its kind of the widely collected Kookaburra coin series.</br></br>Product Description</br></br>The Perth Mint has partnered with APMEX to produce just 1 000 of these spectacular two-coin sets featuring the iconic Kookaburra. This beautiful APMEXclusive® set contains two 2017 Silver Kookaburra coins in Proof and BU finishes.</br><br/>http://www.amazon.com/gp/product/B06Y1K6JZ5