$394,49 is the current Spot price for a kilo of Silver - it changes constantly.
See http://www.24hgold.com/english/gold_silver_prices_charts.aspx?money=USD
In reality, it's worth what someone is prepared to pay for it, and because nobody can buy any silver from dealers at the moment, it's worth a lot more.
Looking on ebay, $500 - $600 seems to be about right.
An Australian 2001 silver 1oz One Dollar "Kookaburra" coin (Silver 99.9% - Proof), in mint condition and the original packaging might fetch up to $85 AUD.
There were 5,000 minted.
They were not issued for general circulation, but as a collector coin.
A reputable coin dealer will be able to give a more detailed answer.
You have a 1oz Australian Kookaburra 99.99% gilded Silver coin with a diameter of 40.6 mm. Queen Elizabeth is on the obverse, a perched kookaburra on the reverse. It has a frosted design with a shiny background and was issued in a case by the Perth Mint as non-circulating legal tender.
The Australian 2007 silver 1oz Kookaburra coin (Proof - with pin), in original condition and packaging, might fetch up to $85 AUD.
There were 10,000 minted.
A reputable coin dealer will be able to give a more accurate valuation.
An Australian 1994 One Dollar silver Kookaburra 1oz coin (Proof), uncirculated and in absolute mint condition could fetch up to $60 AUD.
There were 2,500 minted.
A reputable coin dealer will be able to give a more accurate valuation.
An Australian 1991 Five Dollar silver Kookaburra 1oz coin (kookaburra facing left)(Proof), uncirculated and in absolute mint condition could fetch up to $49 AUD.
There were 6,673 minted.
An Australian 1991 Five Dollar silver Kookaburra 1oz coin (kookaburra facing left)(Sydney Fair - Proof), uncirculated and in absolute mint condition could fetch up to $49 AUD.
There were 1,500 minted.
An Australian 1991 Five Dollar silver Kookaburra 1oz coin (kookaburra facing right)(specimen), uncirculated and in absolute mint condition could fetch up to $35 AUD.
There were an unspecified number minted.
An Australian 1991 Five Dollar silver Kookaburra 1oz coin (kookaburra facing right)(Sydney Fair - specimen in silver), uncirculated and in absolute mint condition could fetch up to $35 AUD.
There were 1,500 minted.
A reputable coin dealer will be able to give a more accurate valuation.
The Australian silver Kookaburra coins have been issued over a span of years in a number of different designs, weights and face values.
Please be more specific about which coin you are interested in.
An Australian 2005 99.9% silver 1 kilogram ($30) "Kookaburra" coin (Proof), were only sold in sets. In mint condition it might fetch up to $900 AUD.
A reputable coin dealer will be able to give a more detailed answer.
Such a coin does not exist.
The Australian "Kookaburra" series of silver Proof coins was first issued in 1990.
These coins have only just been issued. Assuming that they are still in the original packaging, they will be worth whatever you paid for them.
The only reference I can find to a 2007 Australian 1 Dollar coin featuring a Koala is to a pure silver 1 ounce coin with a current value of about $30 AUD. It would probably be suitably packaged in a case.
The approximate value of your coin according to Numismatic News Coin Market Monthly Price Guide for March 2007: 1990 Silver Eagle = $18.00
If you check the back you'll find that you have a halfdollar. There has never been a US-issued Kennedy silver dollar.
Its value tracks the spot price of silver, currently about $13 an ounce.
The silver value of such a bar would be about $2.25 (based on the December 14, 2007 price of silver of $13.98 per troy ounce). An expert would need to see the design and condition of the bar to determine if it had numismatic value above the intrinsic metal value.
The U.S. Silver Eagle is one troy ounce of pure silver. As of 22 January 2013, it's worth $32.
In circulated condition it has no extra value. It's brass, not silver, and was minted in 2007 as part of the Presidential Dollar series. 1789-1797 are the years Washington served as president.
Australian Princess ended in 2007.
Kimi Raikkonen, who win the 2007 Australian Grand Prix
As I type this, the spot price of silver is $17.02 so that's about the value of the coin.
In circulated condition it has no extra value. It's brass, not silver, and was minted in 2007 as part of the Presidential Dollar series. 1789-1797 are the years Washington served as president.
Great Australian Albums - 2007 is rated/received certificates of: Australia:M