ID HELP Massive Abstract 3" thick Cut Carved & Frosted Art Glass Vase 20lbs

This came out of the same Palm Beach Home - WoW What A Chunk Of Art Glass... Need you're help to Id it. It weights abount 20 pounds - Measures 10 1/2" H x 9 1/8" W across the top area - about 5 1/2" W across the bottom area and about 4 3/4" Deep. The actual glass is about 3 1/2" thick - It is cut carved and frosted - reflects a rainbow of color with a light under it - Very Abstract Cube Design. Signed & Numbered on the base - but I cannot make it out. I Really Need Everyone's Help On This One... Maker and approx. date . Thanks Again for everyone's time & efforts in helping - guessing & comments.

Wow - that's a sculptural lump!

It's hard to decypher the signature because of the ghosting caused by refraction. Perhaps you could infill the signature with an opaque material (rubbing talcum podwer over it with a soft cloth is best - but chalk or charcoal dust would do in a pinch) and then lighting it from behind?

Or shining a large light directly onto the base and then photographing the reflection of it at an oblique angle?

I ran your existing image through a rudimentary filter to try and knock the ghost images out, and my closest guess would be:

****ail Müller
**/88

Looks like it says something like MULLER or MUELLER !!!

There was a HERMAN MUELLER who made glass models / sculptures of microscopic life !!!.

Just a Guess ...