In the ancient world, coins were generally made using the most valuable materials: gold, silver, electrum, and copper. As coins slowly replaced barter, copper alloys became more popular. In the modern world, the rising cost of raw materials has meant that coins are more likely to be made from plated-steel and cheap alloys, than precious metals and copper. The commonest of these alloys are nickelbrass (made from copper, zinc, and nickel), cupronickel (copper with nickel), and bronze (copper, zinc and tin).
However, since the invention of coinage, every culture has favoured its own material and it’s this variety that makes collecting coins by composition such a fascinating area.
There are different approaches to this theme: Collecting coins made from a specific metal, or metals. Bi-metallic coins are especially popular. These…