Personally, I have seen SBS 9C on services 111 (my one and only
ride on this bus was on 111 in 1992!) and 9. (Yes! SBS 9C on
service 9! Unbelievable?) Sources said that it was first used on
service 3 and then 118.
The bus has a desto holder but it was removed after it became a
training bus. It was hung from the top-right (as seen from the
front). As the desto was quite small, a regular size desto plate
was placed at the bottom of the windscreen.