Queen Victoria reigned for over 60 years from 1837 to 1901.
The Florin was first issued in 1848 as a tentative step towards decimalisation (one tenth of a Pound).
Please provide a year.
The year may be in Roman numerals, and it may be on the edge on some coins, and just to "up" the degree of difficulty a little, it may be in Gothic script.
You are asking about the value of a Florin (or 2 Shilling) coin from Great Britain (KM#801). British Coins with King Edward VII's portrait are dated between 1902 and 1910, and the value of your Florin depends on both the condition of the coin and its date.
The coin itself is 28.3mm in diameter, weighs 11.3104 grams and is 92.5% silver, giving it an ASW( Actual Silver Weight) of 0.3364 troy ounces. With silver at US$35.80 per troy ounce (as of July 11, 2011), the "melt" value of your coin is about US$12.04.
Numismatically, the "key date" for the series (that is, the most valuable) is the 1905 coin. An example that is in "Fine" condition (nice, but clearly worn) is valued (according to the Standard Catalog of World Coins) at about US$100, about US$225 in "Very Fine" condition, about US$750 in "Extremely Fine" condition (very little wear, and only at the high points of the design), and $1,500 in "Uncirculated" condition (no signs of wear).
Other years are valued at about US$12-$20 in Fine condition, US$25-$55 in Very Fine, US$60-$225 in Extremely Fine condition, and US$300-$650 in Uncirculated condition, with 1902, 1906, 1907 and 1910 on the low end of the range, and 1903, 1904, 1908 and 1909 at the high end of the range. The exception is the 1902, which is valued at about US$120 in Uncirculated condition - while it had the third lowest mintage level, it appears that a lot of these coins (the first with a portrait of a new monarch since 1837) were saved as keepsakes, and there are thus a larger number of them in pristene condition. Additionally, another 15,000 of the 1902 Florins were produced in Matte Proof condition for collectors - these are also valued at about US$120 each.
As you have seen from other postings, double-headed coins are novelty items made by slicing apart 2 genuine coins and joining the matching halves. They have no numismatic value.
Have another look at your Florin. Queen Victoria was not born for another 66 years in mdccliii.
George IV ruled from 1820 to 1830.
The Florin was not introduced until 1848.
All British Queen Victoria Florins from 1849 to 1887 were dated using Roman numerals.
Can you narrow down the possibilities a lot with the actual Roman numerals used?
Very little value... they were made in their thousands !
Such a coin does not exist. The modern silver Florin (Two Shillings) was reintroduced into the currency in 1848 during Queen Victorias reign as a tentative step towards decimalisation (One Florin = one tenth of a Pound).
The last British Florin was minted in 1970.
The first British Florin was introduced in 1849.
There was no 1861 British Florin (Two Shillings) minted.
Not a lot because George IV was on throne from 1820-1830. He died 26 June 1830. George II reigned from 1727-1760
The last New Zealand Florin was minted in 1965.
The last British general circulation Florin was minted in 1967.
The last British Florin minted for general circulation was minted in 1967.
Austria ceased issuing Florin coins in 1867.
Such a coin does not exist. The first British Florin was introduced into circulation in 1849.
Such a coin does not exist. The Florin (Two Shillings) was first minted for general circulation in 1849.