well, really depends, if it was an error coin then there is a possibility.
No coins in 1949 are rare, but as with all US coins, high grade Mint State examples can be valuable.
Just because a coin was struck at the Denver Mint does not make it more valuable. But some D mint coins are more valuable, it depends on the date, denomination and condition of the coin.
It depends on the coins date and mintmark. Modern DCAM Proof coins are very common and so are Mint State coins.
Carson-City minted coins have lower mintage. This is what drives the values.
Yes, there are instances of 1978 Jefferson nickels without a mint mark. This is due to a mint error where the nickel was struck without the mint mark. These error coins can sometimes be valuable to collectors.
They are not valuable, they are still in circulation and are worth 50 Pence. Newer coins only have some value if they are in mint uncirculated condition or, if they are Proof coins. Due to the extra work put into them and the metals they are made from, Proof coins are more expensive to buy in the first place.
Not at all. Many countries mint proof coins in the same metals used for circulation-strike coins, e.g., cupronickel, steel, aluminum, etc. However, some countries do mint special proof coins made from silver, gold, and/or platinum as well as those made from less-valuable metals.
All coins come from a mint. Casino coins are sometimes solid silver.
In early 1861, the South benefited by seizing the Federal Mint in New Orleans. They confiscated over $525,000 coins in the Federal mint there.
The US Mint produces circulating coins, commemorative coins, and bullion coins for the United States.
Definately Ebay. I can't stress this enough ... do your homework pertaining to your coins. Some coins are far more valuable than you may think because of rarity or a mint mark you may have missed.
Platinum Bullion coins are produced at the Philadelphia Mint and West Point Mint.