2023 Niue Captain Cook Crosses the Antarctic Circle 1 Oz Silver Colorized PROOF, from my personal collection. Limited to only 750 coins, this is #345. I believe the coin was produced by the Perth Mint, but it is not stated on the certificate. It comes in a beautiful black presentation case and is enclosed in a full-color cardboard outer sleeve. OGP and COA are included. Please note, as shown in photo #10, the cardboard outer sleeve has a slight ding in the upper left corner and a small tear in the upper right corner.