They made over a billion of these steel pennies in 1943. They are fairly common in good condition, since people tended to squirrel them away when they were issued because they were unusual.
Look on the front of the coin to see if there's a small mint mark letter below the date. It may be blank or there may be a D or S.
Numismedia lists the following approximate retail values as of 08/2014:
No mint mark (Philadelphia):
Very worn condition - $0.06
Moderately worn - $0.17
Slightly worn - $0.26
Almost no wear - $0.70
Uncirculated - $1.04 to $1310.00 depending on quality
"D" mint mark (Denver):
Very worn - $0.07
Moderately worn - $0.24
Slightly worn - $0.40
Almost no wear - $0.80
Uncirculated - $1.44 to $1590.00
"S" mint mark (San Francisco):
Very worn - $0.08
Moderately worn - $0.32
Slightly worn - $0.46
Almost no wear - $1.20
Uncirculated - $3.45 to $2970.00
DISCLAIMER: The retail values quoted are the best available as of the date shown, but may vary due to market fluctuations. Also the wholesale (buying) price of a coin will be less than the selling (retail) price. A reputable coin dealer will be able to give a more accurate valuation based on inspection of the coin.
Why steel?
The coins were made of steel because copper was a strategic metal, needed for making ammunition, wiring, and other things for the war effort. Unfortunately the steel cents were unsuccessful almost from the start. They were confused with dimes, rusted when the zinc plating wore through, or deteriorated because a lot of the steel was low-grade scrap not suited for military use. Bronze cent production was resumed in 1944 using copper recycled from spent shell casings.
1943 Copper Cents
There were a few "copper" (actually a copper, zinc, & tin alloy) 1943 cents made, but most of them are believed to have been found already. A few bronze planchets left over from 1942 were accidentally left in a hopper and got mixed in with the new steel planchets. They weren't detected so they were struck with the 1943 date and released to circulation.
There are carloads of fake versions, including modified 1948 cents and copper-plated 1943 steel cents. If you have a 1943 copper cent and it doesn't stick to a magnet, get it certified first! This will also get it graded, which will help in its eventual sale
Myths about 1943 pennies
Many people are confused about the metal used to make these coins. Because they were silver-colored when new, they were thought to be made of silver or aluminum. After a while the zinc started to discolor and the coins took on an ugly gray color that made others claim they were made of lead. But if you think about it for a couple of seconds, none of these could be true:
> A silver cent would have been worth more than a dime!
> An aluminum cent would be so light you could blow it away with a sneeze.
> A lead cent would be so soft you could bend it with your fingers
> Most importantly, NONE of those metals would stick to a magnet !!!
Link to answer added
It's zinc-coated steel, NOT silver. On average, one is worth around 10 cents. If it's still shiny with the zinc coating intact, then the value is bumped up to about one dollar.
Depends on where you sell it, probably not much.
A dime if well-worn, up to maybe 65 or 70 cents if almost uncirculated.
A US steel Lincoln cent is 5 to 10 cents in average condition.
1943 makes it one of the silver war nickels, currently worth about $1.60.
It's actually steel with only a thin zinc coating. In average condition, a "steelie" cent is only worth 25 to 50 cents. In better condition its value depends on its mint mark and how worn it is. Please see the question "What is the value of a 1943 US cent?" for more information.
The face value is 1 cent.
A genuine 1943 copper (bronze actually) cent exceeds $100,000.00 in value.
On average, one is worth about 10 cents.
A US steel Lincoln cent is 5 to 10 cents in average condition.
1943 makes it one of the silver war nickels, currently worth about $1.60.
It's actually steel with only a thin zinc coating. In average condition, a "steelie" cent is only worth 25 to 50 cents. In better condition its value depends on its mint mark and how worn it is. Please see the question "What is the value of a 1943 US cent?" for more information.
The face value is 1 cent.
A genuine 1943 copper (bronze actually) cent exceeds $100,000.00 in value.
Sorry no steel 1 cent coins dated 1907, only 1943.
The value of a 1943 Malay one cent coin will change often. Currently, the coin is valued between 30 cents and one dollar.
The value of a 1943 fifty cent piece is determined by it condition. However they range anywhere between $9.00 all the way up to $50.00.
Zinc coated steel, not silver. Average value is 5 to 10 cents. The US has never made a one cent coin from silver.
The 1943 Lincoln cents were struck in zinc coated steel not silver. Original surface coins are 10 to 25 cents on average.
1 US cent has the same value the world over! i.e. 1 US cent