In 1949 the M-System Manufacturing Co., produced a large (for that time) 33' long trailer with an indoor bathroom....but as you can see, it was really a glorified showerstall with a stool and small
lavatory. Basically, you could 'go to the bathroom', brush your teeth and shower all at the same time! Seriously, the problem with this arrangement was that after every shower you had to dry off the toilet and
lavatory (and the floor & walls!) before you could use them. So most folks still walked over to the trailer park facilites... Check out how tight the rear bedroom is! The bed is squashed in between the rear wall
and the little bathroom. How do you make this bed??? The exterior of the trailer was ver streamlined. The round corner windows in the living room remind you of the windshields of the cars back then. A few other
trailer manufacturers (like Spartan) used this type of window also.