That question is too broad to answer. If the coins are all in mint condition, it could be worth thousands. If they are circulated coins in good condition, maybe a few hundred. A reputable coin dealer will be able to give an accurate valuation.
There were no Australian Threepences minted prior to 1910.
The slang term for the Australian Threepence was "tray".
Such a coin does not exist. The Royal Australian Mint did not produce any Threepences in 1933.
The last Australian threepence was struck in 1964.
There were no 1914 set of Australian coins issued. Each coin is listed on Wikianswers in the format - "What is the value of a 1914 Australia Florin?".
An Australian 1925 Threepence minted at the Melbourne Mint will have a small "M" below the date.An Australian 1925 Threepence minted at the Sydney Mint will have no mintmark.
The Australian 1944 Threepence was no bigger or smaller than any other Australian Threepence. They were all 16 mm in diameter and weighed 1.41 grams.
With the possible exception of traders tokens (with the traders business name on them), there were no "Australian" Threepences minted prior to 1910.
With the possible exception of traders tokens (with the traders business name on them), there were no "Australian" Threepences minted prior to 1910.
Such a coin does not exist. All Australian Threepences from 1910 to 1944 inclusive were made from sterling silver.
There were no "Australian" Threepences minted prior to 1910. The only Threepences circulating in Australia prior to 1910 were British Threepences.
Modified coins have no collector value. The ring may have some value as a piece of jewellery.