Australia 1951M Penny UNC

The magenta toning was always self-evident on this coin, but the 2nd cycle reds dominating below were not visible until I treated the coin with an alkaline degreaser. That dusty patina just melted away to something spectacular. I cannot explain the what and why of this particular colour behaviour. Nonetheless a fantastic example of this common date and worthy of a premium.

Australia 1951M Penny UNC