2025 $1 Centenary of Royal Australian Corps of Signal Coin
Australia has a unique distinction of having had the first regularly formed signal unit in the British Empire. In 1869, small units existed in New South Wales and Victoria labelled “Torpedo and Signals Corps”. These continued until 1882, when they were disbanded. In 1885 a “Signalling Corps”, composed of 1 officer and 12 other ranks, existed in South Australia and remained active until 1901.
The “Australian Corps of Signallers” was formed on 12 January, 1906. This Corps remained as a self-contained unit, until the introduction of universal training in 1911, when it was merged with Australian Engineers. In 1912, signals troops and companies formed portion of the Corps of Australian Engineers and served as such throughout World War 1 all signals units were separated from the Australian Corps of Engineers. On 1 January 1925, the Australian Corps of Signals was formed. On 10 November 1948, His Majesty King George VI conferred the title “Royal” on the Australian Corps of Signals. Since then, members of the Corps have served with distinction in all operational areas in which Australian troops have been involved – Korea, Malaya, Borneo, South Vietnam, Cambodia, Timor and the Middle East.
The Corps now has a regular peacetime strength of some 300 officers and 2,300 other ranks. Its members are to be found in many parts of the world and in all states of Australia. Extrapolating these figures to include family members and descendants, a conservative estimate suggests the broader “Corps Family” numbers in the order of 300,000 people.
Each coin is struck by the Royal Australian Mint from AlBr and is issued as legal tender under the Australian Currency Act 1965Â and has a mintage of 50,000.
DESIGN
The coin’s reverse features a representation of the god Mercury with references to evolution of signalling methods over the past century. Includes coded messages in both Morse and binary. Also includes the inscription “ROYAL AUSTRALIAN CORPS OF SIGNALS”.
The obverse features the Dan Thorne effigy of His Majesty King Charles III as well as the 2025 year-date and monetary denomination.
PRESENTATION
Each coin is presented in a Royal Australian Corps of Signals themed presentation card.
Technical Specifications
| Year Date | 2025 |
| Denomination (AUD) | 1.00 |
| Metal Content | AlBr |
| Mass (g) | 9.00 |
| Diameter (mm) | 25.00 |
| Finish | Uncirculated |
| Maximum Mintage | 50,000 |
| Reverse / Obverse Designer | A. Ball / D. Thorne |
| Packaging | Coin in presentation card |
* Coin in image 1 is not to scale.
ABOUT ROYAL AUSTRALIAN MINT
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