1976 Australian 50-Cent Circulating Coin
Coin/Bullion (Circulated Numismatic) · Royal Australian Mint, Canberra. Established in 1965 to produce Australia's decimal currency.
Pattern: Standard Australian Decimal Coinage - Machin Obverse / Coat of Arms Reverse
Type
Coin/Bullion (Circulated Numismatic)
Maker
Royal Australian Mint, Canberra. Established in 1965 to produce Australia's decimal currency.
Material
Cupro-Nickel (75% Copper, 25% Nickel). This item contains no silver content.
Dimensions
Diameter: 31.51 mm across flats; Shape: Dodecagonal (12-sided); Weight: 15.55 grams; Thickness: 2.50 mm.
Description
An Australian fifty-cent piece featuring the second portrait of Queen Elizabeth II. Though its metallic luster often mimics silver to the untrained eye, it is a base metal alloy designed for durability in commerce. The dodecagonal shape is iconic to Australian currency, adopted in 1969 to replace the round silver version.
Key Features
Dodecagonal (12-sided) rim; Arnold Machin obverse portrait; distinctive cupro-nickel grey-white luster.
Material & Composition
Cupro-Nickel (75% Copper, 25% Nickel). This item contains no silver content.
Finish & Decoration
Business strike, circulated finish. Features Arnold Machin’s portrait of Queen Elizabeth II in the ‘Girls of Great Britain and Ireland’ Tiara.
Hallmarks & Stamps
No silver hallmarks. Inscriptions: 'ELIZABETH II', 'AUSTRALIA 1976'. Mint marks are usually absent for this standard issue.
Construction Details
Machine-struck on a dodecagonal planchet at the Royal Australian Mint.
Functional Features
Twelve-sided shape to assist in mechanical sorting and tactile identification for the visually impaired. Plain edge.
Handle & Grip Details
N/A (Numismatic item)
Craftsmanship Details
Large-scale industrial minting. High-relief die striking with automated feeding and ejection mechanisms.
Authentication Indicators
Correct dodecagonal profile; 1976 date alignment; Machin portrait details; non-precious metal patina.
Origin & Manufacturing
Canberra, Australia. Produced by the Royal Australian Mint under Commonwealth authority.
Era & Period
Elizabeth II (1952–2022); Post-Decimalization Australian Era.
Age Estimate
Dated 1976; 48 years old as of 2024.
Cultural Significance
A staple of Australian daily life since 1969, representing the stability of the Australian dollar and the transition from British-style coinage to a unique national identity.
Condition Notes
Circulated (Fine to Very Fine). Visible surface scratches, minor rim nicks, and 'bag marks' consistent with domestic commercial use. Noticeable tarnish/oxidation common for nickel-copper alloys.
Value Estimate
Face value ($0.50 AUD). Collector value for standard circulated examples is typically between $0.50 and $2.00 AUD.
Care & Maintenance
For circulated base-metal coins, cleaning is not recommended as it destroys numismatic value. Store in a PVC-free coin flip or capsule to prevent further oxidation.
Similar Pieces
1966 Round Silver 50-Cent (contains 0.3416 oz silver); British 50-pence coin (smaller, heptagonal).
Interesting Facts
The original 1966 50-cent coin was round and made of 80% silver. It was withdrawn because the rising price of silver made the metal worth more than the face value.