There has never been any Sovereign coinage in the Australian currency. The only coins of the Sovereign range circulating in Australia would have been British Coins.
Australia had yet to get its own currency in 1905, the first coins being issued in 1910.
The Melbourne, Perth and Sydney Mints often produced Sovereign coinage, but these were British coins minted to the British pattern. The only identifying distinction is a very small "M", "P" or "S" mintmark on the reverse near the date.
With the possible exception of traders tokens (with the traders business name on them), there were no "Australian" pennies minted prior to 1911.
1905
well in 1901 they ate lamingtons
Jack Barnes - Australian footballer - was born on 1905-05-20.
Frank McManus - Australian politician - was born on 1905-02-27.
Harry Turner - Australian politician - was born on 1905-07-08.
they properly cost about 20 Australian dollars
The Value of Science was created in 1905.
You need to give us the denomination and country of origin. There's a huge difference in value between a farthing dated 1905 and a 1905 Sovereign.
A 1905 Indian Head cent in average circulated condition has a retail value of $1.00$3.00
Australian people value education and family the most
There was no Australian Pound printed prior to 1913. Any One Pound notes circulating in Australia prior to 1913 would have been issued by private banks. To get a valuation on any of these banknotes you would need to provide the name of the issuing bank, the denomination and the date if available.