Trail-Rite Trailer
Trail-Rite of Santa Ana, CA makes most of the trailers for Catalina. So, the trailer is probably a Trail-Rite 3500 lb GVWR. The ID Tag is up front near where the A-Frame meets the tongue. A trailer of that age may no longer have the tag (sticker) intact. So, check it out. If the VIN is known (old registration certificate), then Trail-Rite may be willing to make a new sticker for a nominal fee.Regards,Ted