This is a Farfisa Mini "Deluxe" Compact.  It's the second and most common version of three Mini-Compact organs made by Farfisa.

The two "Deluxe" Minis have an octave of gray bass keys with white sharps, as seen here. 

Their model number is "MC/3 = MINICOMPACT", seen here.

For more info, visit:
combo-organ.com/Farfisa/Compact.

Before you begin to disassemble the organ, make sure it's unplugged from the wall.

Then, remove the BASS VOLUME knob, shown here, from its potentiometer shaft.

Also, remove the gold screw next to it.

Then, remove this gold screw on the opposite end of the control panel.

Now, you can lift off the control panel and lay it aside.  The pilot lamp is still wired to the organ but there's enough slack in the cable.

The wooden top panel is also easy to remove.  It's held down by four silver screws, shown partly extracted in this photo.

Here's the Farfisa Mini-Compact with the top panels removed.

Along the back, three of the organ's twelve oscillator-divider boards are visible.

To remove the divider boards, you must slide the organ chassis out of the bottom half of the Mini-Compact's case.

First, reinstall the metal control panel and then flip over the organ.