Most TriFoilers, for obvious reasons, shipped with trailers. Mysteriously, a few didn't.
Trailers were made by the following companies:
Early painted steel models:
2475 S. Santa Fe Ave.
Vista Ca. 92083
Later aluminum models:
1 Industrial Park Drive
Canfield, Ohio 44406
My galvanized steel trailer was built by:
1305 SE Dixie Highway
but Dan says the factory never sourced trailers from them. So it appears that my boat (#23) was delivered without a trailer, and the first owners (who were in Florida) had it manufactured locally.