- Final Melbourne Mint Sovereign Year: Struck in 1931, the last year of sovereign production at Melbourne.
- 22ct Gold Content: Contains approximately 7.322 grams (0.2354 troy oz) of pure gold.
- Scarcer Branch Mint Output: Melbourne 1931 mintage is significantly lower than Perth and South Africa issues.
- Late-Series “Small Head” Design: Features the final portrait style of King George V sovereigns.
- Strong Collector Demand: Key date within the closing chapter of British Empire sovereign production in Australia.

