Australian One Dollar (Mob of Roos)

Australia · 1985

An Australian one-dollar coin featuring the iconic 'Mob of Kangaroos' reverse design and the Arnold Machin portrait of Queen Elizabeth II on the obverse.

Country: Australia
Year: 1985
Denomination: 1 Dollar
Metal: 92% Copper, 6% Aluminium, 2% Nickel (Aluminium-Bronze)

This report is AI-generated and can be wrong. Always verify grade, authenticity, and value with a qualified dealer or certified grading service before buying, selling, or insuring.

Identified September 14, 2026More australia coins →

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Overview

An Australian one-dollar coin featuring the iconic 'Mob of Kangaroos' reverse design and the Arnold Machin portrait of Queen Elizabeth II on the obverse.

Historical significance

Introduced in May 1984 to replace the one-dollar paper banknote, this coin type is a prominent fixture of Australian currency, featuring Stuart Devlin's famous kangaroo design symbolizing the unique wildlife of Australia.

Obverse (front)

Right-facing portrait of Queen Elizabeth II wearing the Girls of Great Britain and Ireland Tiara, designed by Arnold Machin. Surrounded by the legend 'ELIZABETH II' and 'AUSTRALIA 1985'.

Reverse (back)

Five kangaroos forming a mob, designed by Stuart Devlin. A large numeral '1' intertwined with a kangaroo's tail, with the word 'DOLLAR' beneath.

Estimated value

$1 - $3 in circulated condition, up to $10 - $15 in uncirculated condition

What drives this coin's value

Overall condition, presence of mint luster, and specific numismatic errors such as striking errors or double dies.

Grade assessment

About Uncirculated (AU) / Mint State (MS) with minor bag marks typical of circulation or handling.

Mintage & rarity

Common; tens of millions minted for circulation.

Authenticity & counterfeit red flags

Check weight (9g), dimensions (25mm), and magnetic properties (non-magnetic). Counterfeits are rare due to low face value.

Notable varieties & errors

Various mule errors exist in other years (e.g., 2000 $1/10c mule), but 1985 is generally standard with minor die cracks or rotation errors.

Similar coins

Other Australian dollar commemorative coins of the same metallic composition and diameter.

Care & preservation

Handle by the edges using cotton gloves if uncirculated. Store in a dry environment in archival-safe flips or capsules to prevent environmental toning and corrosion of the aluminium-bronze alloy.