Desperate. AWG995 Programme dial/knob unreadable?

My son has just moved into a flat. The numbers on the programme dial/knob are unreadable, on the installed Whirlpool AWG995 Washer Dryer, making the machine impossible to operate. Extensive searching to find a replacement knob have proved fruitless.

I have read a previous question with a similar problem i.e. all numbers unreadable except for '4' so have the order they should appear but in this case have no start reference point.

Any help regarding this issue would be very gratefully received. Thank you.