You don't "change" valuable coins for money. They have to be sold at auction or to a dealer. In any case there are only a very few coins worth $1 million, and as far as collectors know, all of them are either in museums or private collections. You're not going to find anything worth anywhere near that much in your pocket change.
? Do you mean KEY DATES? A key refers to the date/mintmark combinations that are difficult to find (or expensive) in a series.
There is a premium on silver coins. You can find values by contacting you coin dealer or online.
A 1956 Colombia 20 Centavos L Coin is worth about $3. You can find some of the coins on auction websites or you can also find the coins from coin pawn shops and coin dealers.
Only if you can find money inside of it
All sorts of different coins might be worth that amount. But it depends on their date, mint mark, and condition. Also values can and do change depending on the marketplace. To put it frankly, it actually is better to ask what a particular coin is worth rather than trying to find a coin that's worth a specific amount.
Franklin Half dollars are common coins and none are rare or hard to find. Because of this, and the high price of silver, circulated coins regardless of date or mintmark are valued slightly above the silver content of the coin about $10.00 each. Only Mint State coins would have higher premiums.
All coins have a date that they were minted, so by looking at the coin carefully, you will find the date the coin was minted.
Answer All coins are considered worth something depending on how many of that particular coin was minted in 1943. You can find this out by buying a book on old coins, and it will tell you how many were minted that year and what your coin is worth.
All sorts of different coins might be worth that amount. But it depends on their date, mint mark, and condition. Also values can and do change depending on the marketplace. To put it frankly, it actually is better to ask what a particular coin is worth rather than trying to find a coin that's worth a specific amount.
Try this web site: WWW. MINT ERROR NEWS.COM
Google, or a book made especially about old coins.