The back cover, which is pretending to be an "official" module by listing all available commercial modules, just like TSR's module's do.
The 3 modules at the end are custom modules, two of which were the projects of my brothers Imran and Mashuri.
The last "official" module listed, "Lost Tomb of Martek"
, was published in 1983. So this project was created no earlier than that year.