How rare and how well preserved a coin is is decisive for its collector’s value. You will therefore get the highest sales values if you have special or commemorative embossing or mis-embossing in your possession. If these still have their original shine, the selling price is all the higher.
A few 2-pfennig coins that were minted before 1968 are particularly valuable: At that time, some of the coins were made of pure copper. From the outside, these variants can hardly be distinguished from those made of copper-plated iron. You need a magnet to separate them: the copper coins are not magnetic. For collectors, you can expect prices of up to 5,000 euros for these rare coins, according to the MDM Münzhandelsgesellschaft.
If you think you have a valuable coin in your possession but are not entirely sure, it may be worth checking an official coin catalogue. Some of these can be found on the Internet or in libraries. In the video above we use a few examples to show you how much money certain D-Mark coins can be worth.