It is called a mint.
Coins in the UK are manufactured by the Royal Mint.
Coins are produced at a mint.
the mint
A Mint
Coins are made in a facility called a mint.
They aren't. The place where they are made are called mints.
The royal mint
Athens had coins made of bronze, silver and gold.
yes there were coins made in the past there are some that were made in 1910
No U.S. coins were ever made from lead.
slot
No. Proof coins are sold in one form or another of a protective packaging to protect them, and so that they cannot be handled. The packaging will have an indication that the coins are Proof and what they are made from. If they were loose like general circulation coins, they would lose all of the features that make them Proof coins in the first place.