Cannon Couture Super - where is the model number?

Hi,

My Cannon Couture Super is built in to a kitchen unit and the only visible surface is the front which has no useful information at all (other than the model name). It's 25 years old, fitted by my father who has since passed away and I have no clue where the manual might be. I'm also disabled so any manual work to get at the number if it's on the sides or back is not possible.

Any help gratefully received.