Hoax or not?

The document doesn't come from the Elders' archives, so we cannot vouch for its authenticity:

Click to enlarge (embiggen)

In the upper left corner - registration of outgoing document by KGB, in the right corner - registration of incoming document by the Central Committee of CPSU. Signature of KGB Chairman (Yuri Andropov) - in the lower right corner. Year - 1973.

Now the only thing left to me is translation of the text:

Scheme of the expected geological changes due to correction of the Earth' gravitation field by the device A-241/bis.

You decide...