Message:

<p>[QUOTE=&quot;Leadfoot, post: 700901, member: 2972&quot;]IMO, there are die polish lines and there are die flow lines.&nbsp; They are quite different but similar looking phenomenon.&nbsp; </p><p><br /></p><p>Die flow lines extend radially on the coin -- they are caused by die wear.&nbsp; </p><p><br /></p><p>Die polish tends are most often in a roughly vertical or horizontal direction but can be in any direction and sometimes even in a number of directions -- they are caused by manipulation/polishing of the die during preparation and/or lapping.</p><p><br /></p><p>Die polish is much more common on older coins.&nbsp; I&#039;m not sure what they changed, I suspect two things are at play:&nbsp; 1) they just used to use dies much longer in the old days and therefore were more likely to polish/lap them to increase their life, and 2) modern polishing techniques don&#039;t leave polish lines like the old technique.</p><p><br /></p><p>Respectfully...Mike[/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