Crystal by Gubransen Orchestra II SN 200134-B

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"This is a Crystal Midi Keyboard adapter by Gulbransen Orchestra II.

Model - CRYSORCH2.

SERIAL #-200134-B.

I BELIEVE THIS CAN ALSO BE USED AS A SYNTHESIZER CONTROL PANEL FOR PIANO'S..."

See the Gulbransen label below for more.

CLICK FOR MORE »

GULBRANSEN ORCHESTRA ll SYNTHESIZER CONTROL BOARD

via this auction
"GULBRANSEN ORCHESTRA ll SYNTHESIZER CONTROL BOARD FOR GRAND PIANO TO MIDI CONVERSION KIT. THIS WAS USED ON A GRAND PIANO IN ONE OF THE LARGE LAS VEGAS RESORTS AND ENDED UP BUYING A NEW PIANO AND HAD NO NEED FOR THIS ONE ANY LONGER."

Gulbransen Orchestra II

images via this auction. Gulbransen Orchestra II MIDI Synth Module.

Not the best shots, but I haven't seen one of these before.