That's actually Liberty, not a Roman. It's worth around $5-30 in average condition and a couple hundred in uncirculated condition if it's an '11-D or S.
How much is a 1911 quarter worth
Other than for traders tokens, there was no Australian currency until 1911. Australia did not produce a Quarter Farthing coin.
The roman numeral for 1911 is: MCMXI.
Remember Roman numerals from grade school? "V" is the Roman numeral for 5, so you have a nickel.There's more information at the Related Question.
On the reverse of the quarter eagle, the eagle is sitting on a bundle of arrows. To the left of the arrows there will be a "D" which means you have a 1911 D quarter eagle, the key date. If there is no letter "D" to the left of the arrows, you have just a 1911 quarter eagle (occasionally called a 1911-P because it was struck in Philadelphia, however it doesn't have a P mintmark).
Dominique Roman died in 1911.
It's the head of Miss Liberty.
MCMXI is the number 1911 in roman numerals. This is a notation used earlier for representing numbers.
1911
Roman Totenberg was born on January 1, 1911.
Roman Totenberg was born on January 1, 1911.
A Barber Quarter weighs 6.25 grams and is 90% silver. This equates to Actual Silver Weight (or "ASW") of 0.1818 troy ounces. As of December 5, 2008 (with silver at $9.48/troy ounce), that is a "melt value" of about $1.72. Depending on condition, however, the numismatic value (that is, the value to a collector) is likely quite a bit higher.