I had a fellow with an older Trillium stop in at the shop looking for parts. When he was describing some of the things about his trailer, things weren't making sense so I had to go out for a look!
Didn't pick up on the windows but I would presume it had the same double pane style. What was odd was there was no front rock shield and a solid front and rear windows. None of the window areas in the shell were flattened out (if that makes sense) for the window to sit flat in the curved wall. The frame was bent at the axle
step rather than one stacked on top of the other and welded. The body was also molded to match the bend. There was also no bumper. The frame rails were capped off. Now that could have been a mod at some point but it looked stock. The other thing was the door latch. It was a round style with the door molded to match. This unit did not have a furnace
or fridge/ice box.
Had me scratchin my head till now....early model!! He is supposed to come by with it one of these days to show the upgrades (furnace and rock shield) so I will try to find out what number it is and year.