Other than a notable few, it is highly unlikely that a mistruck Australian coin made it into general circulation. What year is the coin? In what way is it mistruck? Check your information and resubmit the question.
A sixpence was worth 1/40 of a pound so it would be worth about $.04. (1/40 of $1.61)
I will give you £2.50
the same price you bought it for.
2.5 pence
Modified coins have no collector value.
yea i have the same one with the eagles on the chest
A Sixpence was worth Sixpence in every year it was minted, which is why it was called Sixpence. This year being 2012, 98 years ago would have been 1914. Sixpence GBP in 1914 had the purchasing power of about £1.60 GBP today. NOTE - This historical conversion is the result of many calculations and considerations by a purpose designed program. The resulting answer should only be regarded as an approximation based on current exchange rates.
Most Australian Sixpences from 1911 to 1924 in absolute mint condition could get values in excess of $1,800 AUD. The 1918 Sixpence would probably have the geatest value. Coins in less than mint condition might get anything from $10 to $800. A reputable coin dealer will be able to give a more accurate valuation.
What would 1 sestertius be worth today in Australian dollars
You've got to be more specific. First, the usual definition of a florin would be the British coin worth 2 shillings (1/10th of a pound). Because of this, there would be no such thing as a "quarter of a florin" let alone "cents" which cents have never been used when referring to British currency. So a quarter of a florin would be half a shilling or sixpence. But sixpence coins would always say sixpence and never would say "a quarter of a florin" I'd look at your coins again and post a new question.
There were no Australian Threepences minted prior to 1910.