1971 20c Coin - Proof

1971 20c Coin — Proof Finish

Single Proof Finish (Ex-Proof Set) 20c coin struck by the Royal Australian Mint. Supplied in a brand-new 2x2 Mylar coin flip for protection.

Coin Specifications

• 1971 20c Coin featuring Stuart Devlin's iconic Platypus reverse design.
• Ex-Proof Set Specimen: Sourced directly from an official 1971 Royal Australian Mint 6-Coin Proof Set, featuring deeply polished, mirror-like fields contrasted against sharply struck frosted relief.
• Obverse proudly displays Arnold Machin's 2nd portrait of Queen Elizabeth II with exceptional clarity across the hair detail and tiara.
• Condition Standard: Struck to Proof standard using polished dies and multiple high-pressure strikes.
• Catalogue Reference: Numista N# 1003.
• Key Scarcity: Extremely low mintage of only 10,066 proof sets produced for 1971, making it one of the scarcer early decimal proof issues.
• Technical Specs: Cupronickel (75% Copper, 25% Nickel), 11.31g weight, 28.52mm diameter, reeded edge.

Please Note:

• Package Contents: This listing is for a single proof 20c coin only, supplied in a protective Mylar flip.
• Condition & Finish: As an Ex-Proof Set coin, it has never entered general circulation and retains its original mirror fields and sharp frosted devices.
• Image Note: Images reflect the actual condition of the coin available.

About this Coin

The 1971 proof 20c coin is a coveted piece for serious decimal completionists. Produced in an era of strict, low-mintage production runs at the Royal Australian Mint, only 10,066 proof sets were released to collectors in 1971. Featuring Stuart Devlin's classic platypus design rendered with stunning proof mirrors and frosted contrast, this single Ex-Proof Set specimen offers premium eye appeal for any high-grade 20c date run.