A view of skivvies
Regarding the obscured view of nature by covering up the rear of a bus conversion…
The “everything I ever owned aboard folk” usually have a locker for out of season clothes where the rear window was, exchanging this delight for old skivvies.
– FAST FRED
Most coaches built in the last 25 years or so never had a view out of the back anyway, but it’s funny nonetheless. 
