I can't find any reports of this book existing anywhere. I've pored over years of OSPGs and googled like crazy. Nothing on GCD.
What this appears to be is a reprint of World Famous Heroes Magazine #2 that was re-titled and distributed as an incentive for CMO (see the back cover ad). It has CMO ads in the inside front cover, and both back & front covers, which is different from WFHM #2. There is no indicia.
I've now found a second copy, so it's not unique, but it doesn't seem to be common at all. Anyone else know of a copy?