1 Dollar - Elizabeth II 4th Portrait - Alphabet Collection - Letter M - Silver Proof

The Alphabet Collection was issued across 2015–2017 as a mintage-limited proof series aimed squarely at the children's collectibles market — each letter paired with an Australian animal or cultural reference. Pad printing, the same industrial process used on promotional merchandise and instrument panels, was adopted here to apply color directly onto the coin surface rather than through traditional enameling. It bonds a polymer ink layer onto the metal rather than fusing it, which raises legitimate long-term questions about adhesion and archival stability that standard proof coinage never faces.