what is the meaning and usage of aluminium deep trough sheets?
Coins are made of either nickel or copperThey are not worth their face value - eg, a 5p is not really worth 5p in scrap metal when melted downLike notes, they are only a promisory note to pay and exchangedHowever, there was a period eariler this year when the price of copper went up so much that the 2p was worth its face value.
we have a punch and a matrix then aluminum sheet is put over the matrix then punch is put over sheet and exert force on itthen we have a sheet aluminium with special shapethis is called deep drawing.
if you go along to your local museum I'm sure they would allow you to see a ''penny'' as well as give you a breakdown on their compositionAnother way is to email the Aussie mint with your query.
