Rather than creating multiple threads, I'll just list everything I've come across today here. All these are Perth Mint bullion coins that have an ms-bu, as well as a proof variant (which is what you will find listed in Krause), but only have a single year line in the Numista catalog and are locked. Please unlock them.
1. https://en.numista.com/catalogue/pieces38037.html - Proof variant listed with bullion mintage. Need a separate line for each.
2012 P 389,161 Brilliant Uncirculated
2012 P 5,000 Proof; 4,000 in box + 1,000 in 3-coin sets ($2, $1, 50c)
Source: https://www.perthmint.com/documents/2012_Perth_Mint_Numismatic_Coins_Sales_2015.pdf, page 2.
2. https://en.numista.com/catalogue/pieces44784.html
2012 P 118,738 Brilliant Uncirculated
2012 P 1,000 Proof, all in 3-coin set ($2, $1, 50c)
Source: https://www.perthmint.com/documents/2012_Perth_Mint_Numismatic_Coins_Sales_2015.pdf, page 2.
3. https://en.numista.com/catalogue/pieces38579.html - Listed as proof in Krause, as bullion BU on Numista. Need a separate line for each.
2012 P 31,664 Brilliant Uncirculated
2012 P 4,942 Proof
Source: https://www.perthmint.com/documents/2012_Perth_Mint_Numismatic_Coins_Sales_2015.pdf, page 2.
4. https://en.numista.com/catalogue/pieces51913.html
2012 P 19,511 Brilliant Uncirculated
2012 P 471 Proof
Sources:
https://www.perthmint.com/documents/Mintages/Bullion/The%20Australian%20Koala%20Silver%20Bullion%20Coin%20Series%202007%20-%202018.pdf
https://www.perthmint.com/documents/2012_Perth_Mint_Numismatic_Coins_Sales_2015.pdf, page 4