The picture with your serial number, 13-229, is the the data sheet that is mounted to the inside of the closet door. The serial number indicates a manufacture date of around 1971. The other paper is not from Trillium.
Your trailer is not the older style, which do not have opening windows
on the front and back. They also only have two opening panes on the sides.
Check out the list. Click on the serial number for a link to the trailers described. The first 3 trailers on the list are the older style.
A few observations:
- Your furnace
is a Coleman model. These were used on early models, before Trillium switched to Duo-Therm.
- Your door latch is the older round style. These are awesome! I have never seen one break. The Bargman L300, that replaced it, is not as sturdy.
- You are missing the front rock guard. This should be replaced, but they are very hard to find.
I hope you don't mind, but I plan to include your trailer on the Serial number list.