I worked as the PC Zone Manager back in 1991 (when I was 22), and this was the first catalog that we created. It included the release of MS DOS Version 5. The first retail upgrade of DOS, ever. I came up with a crazy promotion at the time, selling the MS DOS Upgrade for $59, along with a pack of coupons for $59 in savings on future purchases. I even had the audacity to hint that it was effectively "Free". Very cheezy, but we sold through more MS DOS upgrades than anyone at the time thought possible.
The scans below are the first three pages from that inaugural catalog in 1991, which includes the MS DOS 5 promotion. Call me nostalgic ;)
My favorite silly things from the scans: