It depends on a few different things, where the coin is originated from (Canada, US, etc.), what grade it's in (condition) and small details on the coin that most people miss.
If it is an 1875 Canadian penny in pristine condition, it could be worth around $30 - $35.
A 1943 Bronze Lincoln Wheat Penny (in good condition) is valued at around $18,000 so you never know.
A picture of the coin could help and here are a few links to help get the value of your coin:
http://pennies.deepskies.com/Value.cfm
http://coins.about.com/library/US-coin-values/bl-US0001-Lincoln-Wheat-Values.htm
http://coins.about.com/od/coinvalues/f/penny_worth.htm
The value of a 1875 penny will vary depending on the condition of the coin. On average, the coin in good condition is worth an estimated $13 dollars.
what is the value of a 1903 indianhead penny
what is the value of 1945d penny
The dot on the N does not yet add to the value of the coin but it is a noted variety for 1875. With a example graded MS-65 color is a major factor for value. A Brown coin has a retail list of $600.00/ Red Brown is $880.00 and a Red coin is $3,150.00
what is the value of a 1912 lincoln wheat penny
The value of a 1875 penny will vary depending on the condition of the coin. On average, the coin in good condition is worth an estimated $13 dollars.
what is the value of a 1903 indianhead penny
what is the value of 1945d penny
The dot on the N does not yet add to the value of the coin but it is a noted variety for 1875. With a example graded MS-65 color is a major factor for value. A Brown coin has a retail list of $600.00/ Red Brown is $880.00 and a Red coin is $3,150.00
what is the value of a 1912 lincoln wheat penny
The 1875 British Penny has the Laurel bust of Queen Victoria on the obverse with a seated Britannia holding a trident and shield on the reverse. There are three variants of this coin with very minor differences. See the link below.
This is not enough information to give an accurate value amount. Need to know 'Type' of penny, 'Date' of penny and 'condition' of penny.
Priceless, you have the only one ever minted.. (does not exist)
The value of an orange one half penny varies by the year of the penny and the condition.
It is worth a penny
...If you can read the date on the penny, it is not an unstamped penny.
A common penny has a value of 1 penny only