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<p>[QUOTE=&quot;ddddd, post: 8627267, member: 22377&quot;]Conder&#039;s book was the first and one of the most definitive sources but it is hard to find (and costs quite a bit due to its scarcity).</p><p><br /></p><p>David Schwager wrote a book that covers many of the different sample slabs. It is affordable and available on eBay (as well as directly from him for a little less):</p><p><br /></p><p><a href="https://www.ebay.com/itm/275264367400" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.ebay.com/itm/275264367400" rel="nofollow">https://www.ebay.com/itm/275264367400</a></p><p><br /></p><p><br /></p><p>Then you have several websites that have put together some good info.</p><p><br /></p><p>~PCGS has its own museum of holders page:</p><p><a href="https://www.pcgs.com/holdermuseum" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.pcgs.com/holdermuseum" rel="nofollow">https://www.pcgs.com/holdermuseum</a></p><p><br /></p><p>~NGC has a page:</p><p><a href="https://www.ngccoin.com/about/evolution-of-ngc-holder/" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.ngccoin.com/about/evolution-of-ngc-holder/" rel="nofollow">https://www.ngccoin.com/about/evolution-of-ngc-holder/</a></p><p><br /></p><p>~We have a post from Conder about NGC generations:</p><p><a href="https://boards.ngccoin.com/topic/117773-ngc-slab-varieties/" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://boards.ngccoin.com/topic/117773-ngc-slab-varieties/" rel="nofollow">https://boards.ngccoin.com/topic/117773-ngc-slab-varieties/</a></p><p><br /></p><p>~Another person made a PCGS and NGC page:</p><p><a href="https://www.oldslabholders.com/post/pcgs-slab-generations" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.oldslabholders.com/post/pcgs-slab-generations" rel="nofollow">https://www.oldslabholders.com/post/pcgs-slab-generations</a></p><p><a href="https://www.oldslabholders.com/post/ngc-slab-generations" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.oldslabholders.com/post/ngc-slab-generations" rel="nofollow">https://www.oldslabholders.com/post/ngc-slab-generations</a></p><p><br /></p><p>~And some resources for Anacs...CU thread followed by pdf file of generations</p><p><a href="https://forums.collectors.com/discussion/1019761/anacs-slab-by-generation-info" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://forums.collectors.com/discussion/1019761/anacs-slab-by-generation-info" rel="nofollow">https://forums.collectors.com/discussion/1019761/anacs-slab-by-generation-info</a></p><p><br /></p><p><a href="https://docs.google.com/presentation/d/1Y_6cj6X2v_ZbO4NrqlRLysVeJO1IgoqnAA51ErVhLf8/edit#slide=id.g13ceb62592e_1_672" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://docs.google.com/presentation/d/1Y_6cj6X2v_ZbO4NrqlRLysVeJO1IgoqnAA51ErVhLf8/edit#slide=id.g13ceb62592e_1_672" rel="nofollow">https://docs.google.com/presentation/d/1Y_6cj6X2v_ZbO4NrqlRLysVeJO1IgoqnAA51ErVhLf8/edit#slide=id.g13ceb62592e_1_672</a>[/QUOTE]</p><p><br /></p>

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