OK, pretty gross,
After years of fighting with the push button floor switches for the turn signals (they lost their spring and I had to continually fight to get them to pop back up), I decided to see whether they could easily be replaced.
Thank you Luke @ US Coach! They could.
But in lifting the floor pedestal which supports them - pretty gross. 1 inch of dirt piled up, dampness, paper clips from 40 yrs ago, and just a lot of gross junk. Some of the remainder here.
However, glad I finally bit the bullet. Especially to find the parts weren't that expensive - and actually look easy to replace. Worst part is going to be disinfecting and cleaning the area up.

Take care bus folks!
Phil