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<p>[QUOTE=&quot;-jeffB, post: 1916842, member: 27832&quot;]Well, I&#039;m having a terrible time getting this imaged -- can&#039;t find the remote for my camera, which means mirror lockup won&#039;t do any good, and I think I need to use my extension tubes to get the magnification we want (either that, or make room to set up one of the stereomicroscopes, and I&#039;ve been putting <i>that</i> off for <i>years</i>).</p><p><br /></p><p>First shot is the edge closest to the hole, second shot is opposite the hole. (Sorry the previews are scaled differently; I didn&#039;t crop them to the same overall dimensions. The two full-resolution shots are to the same scale, and if you line up the grooves, they&#039;re spaced the same.)</p><p><br /></p><p>[ATTACH=full]328908[/ATTACH] [ATTACH=full]328909[/ATTACH] </p><p><br /></p><p>Like I said, the edge is <i>really</i> beaten up around the hole, and the rims have apparently gotten a lot of contact while the thing was actually being worn. I don&#039;t see anything that looks like striations in the grooves, but it may be that I&#039;m not providing enough magnification for that.</p><p><br /></p><p>I&#039;ll try to get the reshot reverse and the oblique views of the rims tomorrow...[/QUOTE]</p><p><br /></p>

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