>>508525729
>What the fuck is this thing made of?
I'm so glad you asked.

https://annas-archive.org/md5/29fcda9616e2584c3804e329abbb1971
>Secrets of Antigravity Propulsion: Tesla, UFOs, and Classified Aerospace Technology

See also
https://www.ttbrown.com/files/SciInv_Aug29.pdf
>"How I Control Gravitation" by T.T. Brown
>Science & Invention (August 1929)

>>508525812
Not any more.