What is the value of a 1911 US cent?

Answer 1

This needs to be seen for an accurate assessment of value. Retail values for this coin in average circulated condition are $25.00-$45.00. Better circulated coins are $55.00-$75.00 and coins showing light to slight wear run $80.00-$135.00. Values are a market average and only for coins in collectible condition, coins that are bent, corroded, scratched, used as jewelery or have been cleaned have far less value if any to a collector or dealer.

Answer 2

1911 is not a rare date for Lincoln cents minted in Philadelphia but it's a different story for those from Denver or San Francisco. Its value also depends very much on the coin's condition in addition to its mint mark the mint mark.

Numismedia lists the following approximate retail values as of 05/2012:

No mint mark (Philadelphia):

Very worn condition - $0.24

Moderately worn - $1.27

Slightly worn - $1.73

Almost no wear - $12

Uncirculated - $19.20 to $162.50 depending on quality

"D" mint mark (Denver):

Very worn condition - $4.60

Moderately worn - $8.91

Slightly worn - $16.10

Almost no wear - $74

Uncirculated - $96.00 to $351.00

"S" mint mark (San Francisco):

Very worn condition - $125.30

Moderately worn - $36.80

Slightly worn - $43.70

Almost no wear - $120

Uncirculated - $174.00 to $720.00

"E Pluribus Unum" coin

The motto E Pluribus Unum ("From many, one") has appeared on cents since 1909 and on all circulating U.S. coins since around 1916, so this generally isn't a distinguishing characteristic. The most important characteristics are denomination, date, mintmark, and condition.
It depends on what 1911 Penny you have, I have read some things on these pennies. It seems that it is really up to which mint your penny came. Specifically saying " one of the most coveted keys in the Lincoln series" is a Denver cent 1914-D only 193,000 pieces were struck. and relativly few pieces were preserved in mint condition. Other keys are 1910-S, 1911-S, 1912-S, 1913-S, 1914-S, 1915-S and 1924-D. Philadephia had no mint mark, San Fransisco (s) and Denver (D) I put a few links to the right to help you in your search for the value of your penny :)