Good morning!

After many years I bought the iconic Mephisto III. I would like to clean it because the case and buttons are very dusty, as is the display window (from the outside).

Does anyone know how I can take the unit apart (remove the casing) - I don't see screws anywhere, so I assume the whole thing rests on snaps?

Of course I know I will lose my warranty by doing this

Thank you in advance for your help!
larryadler