Shazam! 1973 #23 - back issue - $4.00
On-sale date from Comic Reader #125. This issue was printed along with the March 1976 cover-date DCs, judging by the back cover (advertisement for Monogram Snap-Tite Vans), inside front (Daisy B B guns) and inside back (Muscle Fighter IV book) covers, as well as internal ads. This ad configuration is specific to the March cover-dates. This would fit with the on-sale date.
- The World's Mightiest Project - Chapter One: "The Amazing Underground Secret" (7 pages), Chapter Two: "Building a World" (6 pages), Chapter Three: "Peril Strikes the New Earth" (5 pages).
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