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1966 Australia Fifty Cents - Round Silver Coat of Arms

Australia Fifty Cents 1966 In Mint Sets 1966 Australian fifty-cent coin. Design: round silver fifty cent with the Commonwealth Coat of Arms reverse by Stuart Devlin; this format was replaced by the dodecagonal cupro-nickel coin from 1969. Obverse: Queen Elizabeth II, Arnold Machin portrait. Issue/finish: In Mint Sets. Note: precious-metal wording indicates a special collector version. Specifications: 80% silver and 20% copper, circular shape, milled edge, 31.65 mm diameter and 13.28 g mass.

1966 Australia Fifty Cents - Round Silver Coat of Arms full face viewer
1966 Australia Fifty Cents - Round Silver Coat of Arms Reverse
1966 Australia Fifty Cents - Round Silver Coat of Arms Obverse
Type Coin
Country Australia
Denomination Fifty Cents
Year 1966
Variety In Mint Sets
Shape Round

Overview

1966 Australian fifty-cent coin. Design: round silver fifty cent with the Commonwealth Coat of Arms reverse by Stuart Devlin; this format was replaced by the dodecagonal cupro-nickel coin from 1969. Obverse: Queen Elizabeth II, Arnold Machin portrait. Issue/finish: In Mint Sets. Note: precious-metal wording indicates a special collector version. Specifications: 80% silver and 20% copper, circular shape, milled edge, 31.65 mm diameter and 13.28 g mass.

Market Data

eBay Active Listing Prices

live-listing-history data, retrieved 21 Jul 2026

Chart dates use eBay listing-start dates. Coinote scrape dates are not used as listing dates. Summary reflects the selected chart range.

Range AverageAUD 40.50 Range LowAUD 39.99 Range HighAUD 41.00 Listings In Range2
True Average High-Low Trend
AUD 42 AUD 41 AUD 39.99 AUD 38.99 24 May 2026 | Avg AUD 39.99 | Low AUD 39.99 | High AUD 39.9920 Jul 2026 | Avg AUD 41.00 | Low AUD 41.00 | High AUD 41.00 24 May 26 20 Jul 26 20 Jul 26

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1966 Round 50c Fifty Cent Coin Coat of Arms Rounded Australia 80% Silver AUD 41.00 listed 20 Jul 2026 1966 Round 50c Fifty Cent Coin Coat of Arms Rounded Australia 80% Silver AUD 39.99 listed 24 May 2026
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Coinote Albums

Australia Fifty Cents (Decimal Series)
AlbumAustralian Decimal Coins
Australia Fifty Cents (Decimal Series)

Australian fifty cent decimal coin catalog covering the 1966 round silver issue, dodecagonal coat of arms coins, commemoratives, PNC, proof and collector issues.

Related Coins And Notes

1969 Australia Fifty Cents - Coat of Arms1969 Australia Fifty Cents - Coat of Arms alternate face
CatalogueCoin
1969 Australia Fifty Cents - Coat of Arms

Australia Fifty Cents 1969 In Mint Sets 1969 Australian fifty-cent coin. Design: standard Commonwealth Coat of Arms reverse sculpted by Stuart Devlin. Obverse: Queen Elizabeth II, Arnold Machin portrait. Issue/finish: In Mint Sets. Specifications: 75% copper and 25% nickel, dodecagonal shape, plain edge, 31.65 mm across flats and 15.55 g mass.
1970 Australia Fifty Cents - James Cook1970 Australia Fifty Cents - James Cook alternate face
CatalogueCoin
1970 Australia Fifty Cents - James Cook

Australia Fifty Cents 1970 In Mint Sets 1970 Australian fifty-cent coin. Theme: bicentenary of Lieutenant James Cook's 1770 voyage and landing on Australia's east coast. Obverse: Queen Elizabeth II, Arnold Machin portrait. Issue/finish: In Mint Sets. Specifications: 75% copper and 25% nickel, dodecagonal shape, plain edge, 31.65 mm across flats and 15.55 g mass.
1971 Australia Fifty Cents - Coat of Arms1971 Australia Fifty Cents - Coat of Arms alternate face
CatalogueCoin
1971 Australia Fifty Cents - Coat of Arms

Australia Fifty Cents 1971 In Mint Sets 1971 Australian fifty-cent coin. Design: standard Commonwealth Coat of Arms reverse sculpted by Stuart Devlin. Obverse: Queen Elizabeth II, Arnold Machin portrait. Issue/finish: In Mint Sets. Specifications: 75% copper and 25% nickel, dodecagonal shape, plain edge, 31.65 mm across flats and 15.55 g mass.
1972 Australia Fifty Cents - Coat of Arms1972 Australia Fifty Cents - Coat of Arms alternate face
CatalogueCoin
1972 Australia Fifty Cents - Coat of Arms

Australia Fifty Cents 1972 In Mint Sets 1972 Australian fifty-cent coin. Design: standard Commonwealth Coat of Arms reverse sculpted by Stuart Devlin. Obverse: Queen Elizabeth II, Arnold Machin portrait. Issue/finish: In Mint Sets. Specifications: 75% copper and 25% nickel, dodecagonal shape, plain edge, 31.65 mm across flats and 15.55 g mass.
1973 Australia Fifty Cents - Coat of Arms1973 Australia Fifty Cents - Coat of Arms alternate face
CatalogueCoin
1973 Australia Fifty Cents - Coat of Arms

Australia Fifty Cents 1973 In Mint Sets 1973 Australian fifty-cent coin. Design: standard Commonwealth Coat of Arms reverse sculpted by Stuart Devlin. Obverse: Queen Elizabeth II, Arnold Machin portrait. Issue/finish: In Mint Sets. Specifications: 75% copper and 25% nickel, dodecagonal shape, plain edge, 31.65 mm across flats and 15.55 g mass.
1974 Australia Fifty Cents - Coat of Arms1974 Australia Fifty Cents - Coat of Arms alternate face
CatalogueCoin
1974 Australia Fifty Cents - Coat of Arms

Australia Fifty Cents 1974 In Mint Sets 1974 Australian fifty-cent coin. Design: standard Commonwealth Coat of Arms reverse sculpted by Stuart Devlin. Obverse: Queen Elizabeth II, Arnold Machin portrait. Issue/finish: In Mint Sets. Specifications: 75% copper and 25% nickel, dodecagonal shape, plain edge, 31.65 mm across flats and 15.55 g mass.

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