Just been on ebay Germany and I saw a collection of 1/2 proofs for sale with some certificate numbers higher than the declared mintage shown on perth mints own site.
For example
http://www.ebay.de/itm/1-2-Oz-Silbe...73696?pt=Münzen_Medaillen&hash=item27d7b4c820
According to perth mint declared mintage is 396
For example
http://www.ebay.de/itm/1-2-Oz-Silbe...73696?pt=Münzen_Medaillen&hash=item27d7b4c820
According to perth mint declared mintage is 396