Church, Riley (SF), Larson and Allentown almost always merit a premium over the assigned grade (I don't mean the Overstreet value), sometimes a hefty premium. Most others don't.
Seems like a short list. How about Okajima (at least pre-1945)? Seems like Ohio gets a premium. Bethlehem? Northford? I guess it depends on how big a premium we are talking about.
I've said it before and I'll say it again. Okajima is the only pedigree I'd pay a premium for. Of course I'd pay more for some of the qualities that other pedigrees have, but for pedigree itself only Okajima.
There are plenty of Okajima books that are only mid-grade and with average PQ. Heck, there's no shortage of Church copies that are mid-grade with average page quality. It all depends on how they were treated since Chuck sold them. I'm sure a lot of folks have seen Church copies that have been roughly handled and don't warrant much in the way of premium. Given that the SF/Reilly pedigree looks more and more like a made-up story, you might even think those aren't worth the premium currently applied to them.
The Church St John romance books -- which he apparently bought second hand -- don't seem to command much of a premium. With the Okajima books from the camp period, I think people are buying the story maybe more than the condition of the books.
My point exactly. I'd pay more for Church books because they look better. I'd pay more for Okajima books because of the story.