You could try a reputable coin dealer in your area or eBay.
If you mean a U.S. large CENT, it's worth $15-25 in average condition. If you mean a British PENNY, it's worth $10 if worn, up to around $50 if only moderate wear is visible.
1851 seven on top of eight miss print big penny how much is it wroth
A British 1851 copper Penny (Victoria)(Ornamental trident), uncirculated and in absolute mint condition could fetch up to £500 GBP. If it has been circulated but still in good condition, it might fetch anything from £10 to £135 GBP. A British 1851 copper Penny (Victoria)(Ornamental trident DEF:), uncirculated and in absolute mint condition could fetch up to £425 GBP. If it has been circulated but still in good condition, it might fetch anything from £10 to £135 GBP. The values quoted are the best possible for the best specimens in their grades, but may be significantly lower due to varying demand for the coin and the prevailing economic climate. A reputable coin dealer will be able to give a more accurate valuation based on inspection of the coin.
Probably a loaf of bread! hehe
A British 1851 copper Farthing (Victoria), uncirculated and in absolute mint condition could fetch up to £190 GBP. If it has been circulated but still in good condition, it might fetch anything from £10 to £70 GBP. A British 1851 copper Farthing (Victoria)(D in DEI on its side), uncirculated and in absolute mint condition could fetch up to £800 GBP. If it has been circulated but still in good condition, it might fetch anything from £75 to £450 GBP. The values quoted are the best possible for the best specimens in their grades, but may be significantly lower due to varying demand for the coin and the prevailing economic climate. A reputable coin dealer will be able to give a more accurate valuation based on inspection of the coin.
$25 to $8,000 depending upon the condition of the coin.
A British 1851 Threepence, uncirculated and in absolute mint condition could fetch up to £135 GBP. If it has been circulated but still in good condition, it might fetch anything from £10 to £60 GBP. A British 1851 Threepence (5 over 8), circulated but still in good condition, might fetch anything from £18 to £110 GBP. A reputable coin dealer will be able to give a more accurate valuation.
David Turnbull - British abolitionist - died in 1851.
John Bell - British politician - died in 1851.
There's a good image of both sides at the link below
According to "wikipedia" the first Wheat backed pennies were not struck until 1909.
Circulated coins are valued at $18.00-$156.00 depending on grade.