Message:

<p>[QUOTE=&quot;Oldhoopster, post: 3134943, member: 84179&quot;]Do you have any compositional analysis data like XRF or SEM/EDS?&nbsp; After almost 80 years in circulation, it&#039;s impossible to visually determine the composition.&nbsp; You should be able to find a lab or university that will do this for you.&nbsp; If the composition comes back 88% Cu, 8% Zn, and 4% Sn, then you may have something.&nbsp; But without the analytical data, it doesn&#039;t matter if you&#039;re the leading error expert in the US or the head of the Material Science Dept at MIT, it&#039;s just an opinion.</p><p><br /></p><p>Hope this helps[/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