A British 1917 Penny, uncirculated and in absolute mint condition could fetch up to £45 GBP. If it has been circulated but still in good condition, it might fetch anything from £3 to £15 GBP.
If the extra metal is there because of defacing or mutilating of the coin, it will probably render the coin valueless. If the extra metal is there because of a genuine minting flaw, the coin may have some value, above the usual, as a collectible coin.
Genuinely flawed coins are not necessarily known about or documented until somebody turns up with one, since they are an "accident" of the minting process, and have escaped detection during quality control at the mint therefore, a valuation cannot be anticipated.
A reputable coin dealer should be able to identify and confirm the coin as genuine and make a valuation.
The British Half Penny was no longer issued after 1984.
The British Half Penny was no longer issued after 1984.
There is no record of a British 1852 Penny having been minted.
The British New Penny coin was first issued in 1971.
There was no 1850 British Penny minted.
Modified coins have no collector value.
U.S. or British? Post new question.
U.S. or British? Post new question
US or British, post new question.
Assuming you have a British penny with a picture of Queen Anne on the reverse, it might sell for about $15.
All of these Pennies are listed as individual entries on WikiAnswers. If you type the question in as - "What is the value of a 1940 British Penny" changing the year each time, you will see the current estimates on value for each coin.
All of these Pennies are listed as individual entries on WikiAnswers. If you type the question in as - "What is the value of a 1937 British Penny" changing the year each time, you will see the current estimates on value for each coin.