I'll jump in here, and try to help out.
Not many Jubilees were made, and I'm sorry that I don't remember the production years. (Approx. 1978-1981)
The interiors were NOT Ensolite. They had a thinner foam backing, with a white, stucco type appearance. (Kids liked to poke off the kernels.) The interiors were conventional wood & paneling. The entry door is a flat standard trailer door, not molded & curved like the 1300 & 4500 models. We tried to create a look closer to conventional trailers, in order to expand market share. - And hold down our escalating costs.
Serial Numbers (All Trilliums Models): Placed on the front lower left body of the trailer.
Also on the back of the closet door, on the spec sheet.
If these items are missing, some ways to get the the mfg. year info:
In the trailer:
Appliances sometimes carry a manufacture date.
, Stove, Furnace
, Tires- (if still original; Designated as size A or B 78x13)
To get VIN: Some trailers had the number stamped into the frame tube near the coupler. The impressions were not very deep, and are probably filled with paint
Previous/original owner: Should be able to narrow down when purchased/registered. Check with the local DMV for that State/Province. If it has an old license
plate on it; again, DMV should be able to figure it out. Throughly search the interior for old documents. It may surprise you to find things in the back corners.
Since I'm asked frequently about the VIN & year, I'm thinking of setting up a database of trailers where the serial numbers & mfg. date are known. This will be a long process, so I hope as many that have the info will participate. (And encourage others.)
Current owners should send in their info to Projects[at]TrilliumRV.com
Your info will be confidential.
Send any other ideas you have as well. I too, would like to have an accurate history & database on the Trilliums. Unfortunately, none of these records survived the company.