any copper penny is worth more than its face value.
1937 penny
1909-S-vdb, 1914-D, 1931-S and others.
The 1964 Lincoln penny is unfortuantely worth 1 penny. This was not a key date amongst pennies. Most valuable pennies were wheat and Indian head cents dating from 1859-1958
About 5 cents. Steel pennies aren't nearly as valuable as most people believe.
Most likely. They should be evaluated by a professional coin collector and him/her can give you a more detailed evaluation.
In an auction house.
1937 penny
Because people do collect them.
Wheat pennies from the 1940's and 50's are 5-10 cents.
Not really, as there are billions of them already in circulation.
Not any time soon. There are billions of them in circulation.
The sauce has acid in it, which cleans pennies. Keep in mind that a penny that might be rare and valuable has little value if it has been cleaned.
There are many years that have valuable 1 cent coins. For Lincoln cents, this usually will involve a combination of the year and the mintmark -- a small "D" or "S" below the date. You can find a list of retail values for all the different types of U.S. cents here : http://www.numismedia.com/fmv/fmvcents.shtml
Generally, coins are valuable because of the price of the metals they are made from, but if you mean in a collectible way: One thing that makes a penny valuable is the date. They older the coin usually the more valuable. Another thing is the mintmark. For example 1943 pennies with a "S" mintmark are more valuable than pennies with no mintmark. Another thing is the condition of the coin. The less ware it has the more it's worth.
it depends wheather or not you are interested in them and think they are valuable.
Yes, less than 6 are known.
1909-S-vdb, 1914-D, 1931-S and others.