Collecting..

Variety collections are collections which feature the same coins made from different sets of dies. During older times when the dies were hand made, some of them may have slight differences which are now the basis for collecting this sort of theme.

Coin collecting also includes a theme based on errors made on the coins. Errors were more often found on coins made before the 19th century, when the process of minting was not yet automated. This makes for more mistakes which are the happiness of modern day collectors. Some of the variety collections can also be found in the error collections.
Collections based on subjects are also fairly common. Examples of these are coins with animals or boats which are classified as one subject. The difficulty in this coin collection is how to look for a specific coin around the world.