In circulated condition, the presence or lack of a mint mark does not significantly change its value. US cents with no mint mark were minted in Philadelphia, where most coins are minted; therefore, cents without mint marks often are more plentiful, and have 'less' value to collectors. In the case of the 1943 steel cent, there's little extra value between the 3 mints until you get to the high grade uncirculated coins, in which case the no-mintmark coins are worth significantly more -- twice as much as the "S" mintmarks and 5 times as much as the "D" mintmarks.
Steel pennies were only minted in 1943, however some examples of steel pennies being struck in error in 1944.
1943
Yes
There were no 1910 steel pennies ever made. The pennies made in 1910 were made out of nearly pure copper.
The US never made silver pennies. In 1943 the US made steel pennies. These are often mistaken for silver pennies.
It's easy! Pennies were never made of silver. They would be worth way more than a cent. Steel pennies were made in 1943. So if you have a penny that was minted in 1943 it's not silver but rather steel.
Steel pennies were only minted in 1943, however some examples of steel pennies being struck in error in 1944.
Steel pennies are worth 12 to 15 cents each and up to 65 cents if they weren't circulated. Steel pennies were made during WWII when cooper was needed to support the troops.
Yes, in 1943, some pennies were made of steel due to a shortage of copper during World War II. These steel pennies are rare and highly sought after by collectors.
Steelies. Short for "steel cents." Copper was needed for the war, so pennies were cast out of steel.
Aluminum has a higher thermal conductivity than steel. This means that aluminum is better at conducting heat compared to steel.
Steel has a lower thermal conductivity compared to aluminum. This means that aluminum is better at conducting heat than steel.
The vast, vast, vast, majority of 1944 pennies are copper. If it sticks to a magnet it /might/ be steel, though you'd have to take it to an expert to make sure it wasn't altered from a steel 1943 penny.
1943
it all depends on what year it is
Yes
There were no 1910 steel pennies ever made. The pennies made in 1910 were made out of nearly pure copper.