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Posted By: David Seaborn

Being dissatisfied with Krause's inaccurate numbers (no offense Bob) for all the reasons already mentioned, I have taken it upon myself to track the sale of every pre-1916 card graded by one of the big three (PSA, SGC, GAI). I only inclduded grade cards because this takes a great deal of the subjectivity out of the process. This includes eBay sales as well as all the major auction houses (buyer's premiums included). It's quite an undertaking. I've often wondered how others came up with their numbers and if this would be of value to other fellow collectors. I know there are still flaws this way, but it certainly gives better resolution than any other system of which I am aware. I've been thinking of making this available to the board somehow for quite some time.