You have a lot of those covers, more than me. I don't know how big the original collection was but you must remember those of us that didn't live through the golden age had never seen the covers before. I was happy to get a black and white copy of the Master Comics and Captain America covers. Fanzines didn't use a lot of Photo offset reproduction and little was known about the content of many issues because it was constantly changing. Jerry gave us photos, indexes and stories first and then identified the writers and artists. The first part still continues but identification of the artist and writers was started early before everyone became too old. Fortunately Bill Schelly has been keeping track of who did what and when, I think.