1970 Captain Cook Bicentenary 50c Coin
The 1970 Captain Cook Bicentenary 50c is a circulating 50c coin with 16.5 million made. Value band: face value. Here is how to recognize it, what makes one worth more and what to check on yours.
- Year
- 1970
- Circulation mintage
- 16,500,000
- Value band
- Face value
- Composition
- Cupronickel (75% copper, 25% nickel)
Original illustration of the coin's shape and metal. Tap to flip. Not a picture of the actual design.
Face value · Small premium · Collector premium · Significant rarity. We use bands because prices change daily.
What is a 1970 Captain Cook Bicentenary 50c worth?
16.5 million were made, so the 1970 Captain Cook Bicentenary 50c is easy to find. A circulated one is worth face value; collectors pay a little more only for uncirculated coins.
What would make yours worth more:
- Uncirculated condition with no bag marks
- An original mint roll or set
- A recognized variety or genuine error
For market prices, look at recent sold results for the same coin in the same condition, not asking prices.
Quick answers
- Is the 1970 Captain Cook Bicentenary 50c rare?
- No. 16.5 million were made, so circulated examples are worth face value.
- How many 1970 Captain Cook Bicentenary 50c coins were made?
- 16,500,000 were struck for circulation.
- What is the 1970 Captain Cook Bicentenary 50c made of?
- Cupronickel (75% copper, 25% nickel). It weighs 15.55 g and measures 31.65 mm, with a 12-sided shape.
- Is the 1970 Captain Cook Bicentenary 50c still legal tender?
- Yes. Every 50c coin, commemoratives included, is legal tender in Australia.
Why the 1970 Captain Cook Bicentenary 50c was made
In 1770 James Cook sailed HMS Endeavour up the east coast of Australia, charting it for the first time and landing at Botany Bay in late April. Two hundred years later the country marked the voyage with a special reverse on the 50c, the first time an Australian decimal coin carried anything other than its regular design. The 12-sided cupronickel coin was itself almost new, introduced in 1969 after the round silver 50c of 1966 was dropped, so the Cook coin was one of the first 12-sided pieces many people handled.
The bicentenary was a big national event and Queen Elizabeth II toured Australia during 1970 as part of the celebrations. The coin went straight into circulation with a mintage of 16,500,000, enough to put one in almost every purse. That's why it still turns up in old jars and inherited collections. People often assume a 50c this old must be valuable because of its age, but age counts for little with a coin struck in such numbers. Its real importance is historical: it started the long Australian habit of using the big 50c to tell national stories.
How to recognize it
Stuart Devlin, who designed Australia's original decimal coins, created this reverse. It shows a bust of Cook in front of a map of Australia that traces his voyage up the east coast. Look for Cook's signature reproduced on the coin, an unusual touch that confirms the design at a glance. The lettering gives FIFTY CENTS and the year 1770. On the obverse is Arnold Machin's portrait of Queen Elizabeth II with 1970 in the legend. Size and weight match every 12-sided 50c since 1969: 31.65 mm across the flats and 15.55 g of cupronickel with a plain edge. If your 1970 coin shows the coat of arms rather than Cook, check the date again.
1970 Captain Cook Bicentenary 50c by the numbers
By the numbers, the 1970 Captain Cook Bicentenary 50c ranks 23rd lowest of 32 circulating 50c coins with a published mintage. The next scarcer is the 1995 Weary Dunlop 50c (15.9 million); the next more common is the 2000 Millennium Year 50c (16.6 million).
For scale, the most common is the 1982 Brisbane Commonwealth Games 50c with 49.6 million, about 3 times as many. The scarcest is the 2017 1967 Referendum and Mabo 50c with 1.4 million, 12 times fewer than this one.
It was the only circulating commemorative 50c coin dated 1970.
What to check on your 1970 Captain Cook Bicentenary 50c
- Confirm the design and date: Captain Cook Bicentenary dated 1970.
- Check the shape and size: the 50c is 12-sided, 31.65 mm across and weighs 15.55 g.
- Look at the surfaces under a light. Coins from mint rolls or sets have unbroken luster; change-worn coins show scuffs on the high points.
- Never clean it. Polishing leaves fine scratches and an unnatural shine that collectors avoid.
A mintage of 16.5 million sits in the middle of the range for commemorative 50c coins, so this is not a scarce piece. Worn examples are face value coins. A coin with sharp detail in Cook's hair and clean, unmarked fields is different and can draw a small premium, because the broad flat surfaces of the 50c pick up scratches and knocks very easily. If you're sorting a family hoard, set aside the best one or two and spend the rest. Keepers belong in a flip or holder, not loose in a jar where they rub against each other.
Mintage chart
Specifications
| Country | Australia |
|---|---|
| Denomination | 50 cents |
| Issuer | Royal Australian Mint |
| Year | 1970 |
| Circulation mintage | 16,500,000 |
| Composition | Cupronickel (75% copper, 25% nickel) |
| Weight | 15.55 g |
| Diameter | 31.65 mm |
| Shape | 12-sided |
| Edge | Plain |
Frequently asked questions
Is the 1970 Captain Cook 50c rare?
No. With 16,500,000 released into circulation it is one of the more plentiful early commemoratives. Circulated coins are face value, while a bright uncirculated example is worth keeping and can carry a small premium with collectors.
Why is there a signature on the Captain Cook 50c?
The design reproduces James Cook's own signature beside his portrait and the map of Australia. It links the coin directly to the man whose 1770 voyage it marks and is one of the quickest details for confirming you have this coin.
Mintage figures: Australian fifty-cent coin (Wikipedia, CC BY-SA 4.0), compiled from Royal Australian Mint figures. How we build these pages.