Metal coins were the first monetary unit that were stamped with a motif on both sides. To describe this process we use the representative technical terms.

The manufacturing method to stamp coins were up to recent history actually very simple. However, within the last 200 years of the industrial age machinery made for swift development.

The coins of today have many forms - from round to square, with and without holes. The fact that some coins have a ripple edging has a good reason.

Collector's coins has their different values. It is important to know in which mint they were manufactured in order to calculate their value.

	Technical Terms
	Development