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<p>[QUOTE=&quot;SuperDave, post: 2915287, member: 1892&quot;]Get the coin, and a loupe, out into bright sunlight. There&#039;s nothing better for revealing hairlines which both your eye and especially the camera might miss under other conditions. It is not at all surprising to see San Francisco Morgans, especially from 1878-1879, displaying PL characteristics and an amazing amount of die polishing, and this could well be such a coin. However, the lines I see on the obverse are curved on the left side, and Mint-originated die polishing lines for these years will be straight, in a North-South orientation.</p><p><br /></p><p>Therefore, you have to see if those lines carry onto the devices, which would be a sure sign that the coin has been brushed since die polishing cannot reach those areas. It&#039;s quite possible they&#039;ll only be visible from one specific sight angle and almost impossible to capture with the camera.[/QUOTE]</p><p><br /></p>

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