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<p>[QUOTE=&quot;Spark1951, post: 24898512, member: 90692&quot;]Some info:&nbsp; </p><p><br /></p><p>SGS was Strategic Grading Services who did slabbing very briefly in the early 1990s but then stopped doing so for unknown reasons.</p><p><br /></p><p>NumisMedia/FMV lists a PF69 for a value of $90, not sure a diff. TPG slab would be feasible for this coin.</p><p><br /></p><p>There appears to be many scratches on this slab, I don’t think they are on the coin, maybe dump the slab and go with encapsulation like an Airtite.</p><p><br /></p><p>I doubt this Washington 1958 Philadelphia silver proof would achieve PF70 if re-slabbed.&nbsp; But it is a very, very nice looking coin and has sleeper potential.</p><p>…imo…Spark[/QUOTE]</p><p><br /></p>

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