As of July 11 2012 a 1955-S US penny in MS-60 condition is worth around 35 cents.
A 1955-D penny is worth 5 cents if its mint state is MS60 the value rises to 35 cents
A 1852 penny - aka - Coronet Large Cent - in good condition (G4) is worth: $20.00; if its mint state is MS60, the value is: $500.00.
A 1810 penny - aka - Classic Head Large Cent - in good condition (G4) is worth: $65.00; if the mint state is MS60 ,its value is: $7000.
A 1885 penny - aka Indian Head Cent in good condition (G4) is worth: $6.00; if its mint state is MS60, the value rises to: $200.
A 1940-S Lincoln Cent in MS60 condition is worth: $10.00. In G4 (good) condition, its value is only: 5 cents
The value of a 1935 penny with the Denver mint mark in circulated condition is typically around 15-50 cents. If the coin is in uncirculated condition, it could be worth $5-10 or more to a collector.
A 1889 penny - aka - Indian Head Cent - in good condition (G4) is worth: $2.00; if its mint state is MS60, the value is: $65.00.
The value of a 1964 Denver penny can vary depending on its condition and whether it has any unique characteristics. In general, a circulated 1964 Denver penny is worth about 2 cents to a collector. If it's in mint condition, it could be worth more to the right collector.
1897 is not a rare date for Indian Head cents. If it is in so-called "good" condition (G4, actually very worn), its value is: $2.00; if it's moderately worn (VF20) its value is $4.00 if its mint state is MS60, the value rises to: $50.00.
All U.S. "pennies" are one-cent coins so a "1 cent penny" is a bit like a "16 ounce pound"1941 is not a rare year for Lincoln cents. There were 92,360,000 pennies struck in San Francisco in 1941 and no proofs issued. In the year 2010 the coin is worth roughly 200 dollars, about twice the value of copper it contains, this assumes the penny is in circulation. In some case you may find coins in uncirculated condition, the exact value would be based on it's specific condition ranging between AU51 and MS60. It would be hard to find a penny from this year and mint above MS60 state.
A 1885 dime - aka - Seated Liberty Dime - in MS60 condition is worth: $200.
If you're referring to a U.S. cent, $3 to $10 depending on condition.If you mean a British penny, $10 to $40More:If this is a US coin as suggested above, it would be an Indian Head Penny that was only minted in Philadelphia in 1883. The value greatly depends on the condition of the coin. According to USA Coin Book, this coin in good condition is worth about $4.75 up to about $55 in MS60 mint condition. A coin in MS63 choice uncirculated grade is worth $85. Proof coins were also minted in Philadelphia and these are worth about $310.