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<p>[QUOTE=&quot;Al Kowsky, post: 7780302, member: 97383&quot;]Before a coin can be called a proof it must meet certain requirements. Proof coins made before the mid 19th century are very rare, so the process is a modern one. Proof coins are made from machine-made dies, not hand engraved dies. The dies for proof coins are made from case hardened steel, a process unknown to the ancient coiners. Proof coins are struck from hydraulic presses using many metric tons of pressure, something ancient coiners were unable to do. The ancient coiners didn&#039;t have polishing equipment driven by electricity, so they couldn&#039;t duplicate the fine finish of a modern proof coin. That&#039;s why ancient coiners couldn&#039;t make proof coins. The process of making proof coins isn&#039;t as simple as you think it is.[/QUOTE]</p><p><br /></p>

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