Message:

<p>[QUOTE=&quot;physics-fan3.14, post: 26569695, member: 19165&quot;]This varied widely from series to series. Some series have a shallow bowl shape (like the Morgan dollar), and some of them had much deeper curvatures (like the St. Gaudens). Some of them even had different curvatures in different parts of the fields (like the Buffalo nickel). </p><p><br /></p><p>Modern coins have an incredibly shallow curve, which tends to prolong die life.[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in