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<p>[QUOTE=&quot;David Askett, post: 9439983, member: 4727&quot;]While looking for pigment dots with a loupe, I accidentally discovered a tiny little impressed mark that I hadn’t noticed before:</p><p><br /></p><p><img src="https://i.imgur.com/JpnJAIw.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /> </p><p><br /></p><p>Turns out, it’s the logo of the American Optical Company used from 1889-1911!</p><p><br /></p><p><img src="https://i.imgur.com/2GFmVav.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>

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