the double eagle...hope i helped(:
There was never a 2 Florin coin minted in the 20th century.
Check that coin again. The U.S. has never minted a two dollar coin.
The U.S. Mint has never produced a one troy ounce seated liberty coin. I can only deduce that you have a privately minted one ounce silver round that has a seated liberty design on it. These have been minted for decades and continue to be minted every year by private companies.
New Zealand 20 cent coins have never been minted in gold.
The US never minted a $2 coin. But they did mint quarter eagles ($2.5)
Yes a coin could be struck in 10k gold, but the U.S. has never made one.
British Shillings were never minted in gold. It was only ten years earlier that were no longer minted in 50% silver. Your coin may have been plated. Modified coins have no value.
With the possible exception of traders tokens (with the traders business name on them), there was never an "Australian" Farthing minted. The only Farthings circulating in Australia were British Farthings.
Australia has never produced a 15 (anything) coin or banknote.
The U.S. never minted a silver penny. It would have more than a dime's worth of silver in it. Your coin has been plated.
The was never a British 10 Shilling coin minted. A Half-Sovereign was the equivalent of 10 Shillings.
All coins have been minted, minting simply refers to the striking of the coin. If a coin wasn't minted, it would just be a blank disc. Mint condition on the other hand refers to a coin with no wear on it at all, while all the other grades of coins have wear ranging from slight (about uncirculated) or a lot of wear (poor).