Yes, I know. I should have been more transparent for the reason I'm searching for these URLs. I need the URLs to see if they were "crawled" by The Way Back Machine. I'm hoping to find unique SK books offered at different times from prominent book sellers. So now that I've been reacquainted with the Barry Levin website, I can see what was offered over the previous 20 years. It should be fun (hopefully) to see what was available and how much it was.
John