The Autobot Matrix of Leadership/ Creation Matrix from G1. (Not to be confused with The Matrix from RotF or the Keanu Reeves movies.)
About this creation
Sorry to use the same shot twice in a row again, but anyway, here's The Matrix.
Incase you didn't get a good look in the last two pictures, it has the finger holes that are just large enough to fit one's fingers into.
It can open.
"Now, light our darkest hour!" -Rodimus Prime
"The wisdom of the ages! It's lost!"
"No, not lost. We're all a little wiser now."
"But the Matrix is empty!"
"It's up to all of us to fill it againówith the wisdom we accumulate from this moment on. Autobots, transform and roll out!" -Optimus Prime and Rodimus.
Here's the back, where you can see the spherical design. I wanted to put a decal that said
"If found, pleas return to Sentinel PrimeOptimus PrimeRodimus Prime Optimus Prime