There were 64,904 2000 (Millennium Celebrations) Australian 6 coin Proof sets produced.
There were a further 100 (Federation Special VIP) Australian 6 coin Proof sets produced, and presented to selected recipients.
The Australian Two Dollar coin is made from copper, aluminium and nickel and is of a gold appearance. Very occasionally, some Proof coins are made from silver and issued in sets. The 2000 $2 coin was not one of these. If you have a silver $2 coin, it has been plated. Modified coins are worthless as a collectible.
The Australian 2 cent coin was made from bronze. If you have a silver coin it would be because somebody has plated it. These coins are no longer in circulation, but unless they are part of a Proof or Uncirculated mint set or are individual Proof or Uncirculated coins and in absolute mint condition, they are worth 2 cents.
A proof coin has a special shiny finish on it and it is made to be sold to collectors, and not used as money.
The wombat does not normally appear on any Australian general circulation coin, although it made an appearance on the 2004 "Student Design" 50 cent coin together with a koala and a cockatoo. The Common Wombat does appear on the 2007 gold Proof "Fauna" series of coins.
The only Australian coins minted for general circulation in 2007 were the 5, 10 and 20 cent coins and the 2 Dollar coin. The 50 cent coin was only minted as a Non-Circulating Commemorative and, the 1 Dollar coin was only minted for Uncirculated or Mint year sets and Proof sets.
The term Proof refers to the method of manufacture and is not a variety. A Proof coin of any denomination is not made for circulation, but to sell to collectors.
A proof coin is made from a highly polished planchet (blank) and struck more than once to produce a highly detailed relief. Proof coins are sold to collectors and are not put into general circulation.
Because it is made from 75% copper and 25% nickel, not iron or steel. No Australian coin is magnetic.
1985 was only the second year of issue for the Australian One Dollar coin which was issued as a general circulation coin with about 91.4 million minted and a Proof coin with about 75,000 minted. Apart from the usual clips, dings and damaged planchets, there is no record of coins being taken off the market due to a design fault.
An Australian 1999 $100 coin (Perth Mint Centenary)(bi-metal gold/silver Proof), in absolute mint condition could fetch up to $450 AUD. There were 7,500 minted. An Australian 1999 $100 coin (Perth Mint Centenary)(bi-metal gold/silver Uncirculated), in absolute mint condition could fetch up to $425 AUD. There were 50,000 minted. A reputable coin dealer will be able to give a more accurate valuation.
The pre-2000 Somali Five Shilling coin was made from a copper/nickel alloy. The post-2000 Somali Five Shilling (or Scellini) coin is made from aluminium.
An "Uncirculated" coin is exactly that. It has never been in circulation and is in mint condition, and in the packaging it was sold in. A "Proof" coin is similar to an "Uncirculated" coin in that it has never been in circulation, but they are made on specially polished dies so that they have a very lustrous and shiny appearance. Proof coins might also be made from a metal other than what the normal coin might be made from, such as gold or silver. Proof coins usually cost a lot more to buy irrespective of what they are made from.