INTERESTING METAL WEBPAGES

 
WHAT IS THE PERCENTAGE OF COPPER IN 1,2,5 AND 10 cent COINS?

If you  want to  satisfy  your  curiosity, I highly recommend a visit to the next websites  

• http://archive.li/M8EE 
• https://copperalliance.org.uk/about-copper/applications/coinage/copper-euro/

WHY ARE SOME UK COINS MAGNETIC?

• https://blog.royalmint.com/why-are-some-uk-coins-magnetic/