Now I Have to Find A BIG Space On The Wall

I picked this up from an estate sale yesterday. I couldn't resist even though it's 41.5" x 49". Moving it in and out of the car required the assistance of the Wife and Daughter. Finding wall space is going to be a real challenge!

 

Can anyone identify the machine and/or the artist?

It's a QWERTZ layout and the keys almost look like Hermes seafoam plastic. Might be an artist's amalgamation...