So I was curious about this and asked Tom at Trillium RV. He gave me permission to share his reply. (Below) I love learning about the history of them.
Hi Nancy:
After 17 years of helping vintage Trillium owners, you're the first to ask about the logo change.
I believe this was done in the mid 70's. To go back over 45 years in memory accurately isn't easy. During this time we were making a lot of changes, and developing the 4500 model. So, I really can't give you an exact year. If you attend the FG rallies, you could come up with something. I've been to some with over 60 Trilliums attending.
The logo also appeared on the left side of the trailer - same as on the door. But again, it was phased out due to mold maintenance. And, with some many trailers being ordered with fridges, the whole logo was covered up by the vent anyway.
The 'legs' below the 3 leaf Trillium, were part of the original logo design. It was used on many things such as letterhead, business cards, and advertising. It was used over the entire life of the company, and I used it occasionally during the time I produced Trilliums. However, it required a lot of mold maintenance, so the legs were phased out.
Happy Camping.
Tom
Hi Nancy:
The only way to know the model year accurately, is by the
title or
license registration.
We occasionally had trouble with the way parts came out of the molds. These were set aside and worked on as time permitted. So, some trailer
VIN numbers can be a year earlier or later. Even though we retained the sequential stock number as the
VIN, it isn't a guarantee of the correct model year. Most mold changes were cosmetic, so it took time to make the changes according to personnel availability.
We had over 100 molds to make all the various models & configurations.
I know there's someone (Dave) on the FGRV website that is keeping a record of owners by serial number. This has some degree of accuracy, but is not absolute.
Also, some feel that the CSA and RVIA number is a model year indicator - it is not. Those numbers can be way off. They were placed in a box, and picked out at random.
Best regards.
Tom