Posted By:
leonFor what we collect (pre-'41) I would say that www.oldcardboard.com has about the best guide today. I know because I helped on all of the issues I know of (not that I am always correct) and other hobbyists, and the curator of the site, did lot's 'o research too. I think you will find the values much closer to reality than any book guide. The SCD is the best guide for a periodical. It just can't be as up to date as cyberspace. regards all