Moog Apollo, Polypreset?

Hello, I am new to this forum. I recently found two unique Moog products. One is a Moog Apollo synthesizer. It looks allot like a Polymoog keyboard. The other looks like no other Moog I have even seen. It is labelled Moog Polypreset. Any ideas on these pieces. I should be able to provide pics soon enough.

The Apollo was a prototype from when Moog were planning the “Constellation”, basically a keyboard rig consisting of an Apollo (polysynth), Lyra (mono), and Taurus (bass). I don’t know how many were made, but I would guess fewer than one hundred. If it’s the real deal, you’re looking at a significant piece of music history. Keith Emerson used it on tour in 1974, in conjunction with the Lyra solo synthesizer. After he sent it back I think it was more or less abandoned by Moog. I’ve always wanted to play the Lyra.

There were two “Apollo” synths.

One was the 61-key prototype (only 49 notes wired in) used by Keith Emerson on Brain Salad Surgery album and tour. Behind KE in this pic is the Apollo with the Lyra on top.

The other is the 71-key 14-preset Polymoog renamed “Apollo”. Looks like it was targeted for homes. I have never seen one and do not know how many were made.

I know there are at least two.