Late last year I purchased a small used 13 ft sailboat from a young guy who was moving to Florida. As a bonus, I got a Caravan trailer. I was happy about the sailboat, but knew nothing about trailers. Since the purchase last September I have learned more about trailers, and I think I have a problem. I contacted the manufacturer and was told this model, built in early 90s has no VIN etched into frame. I lost track of the seller, and it looks like I need to know this to register and get a license plate for the trailer. What do I do? The trailer does have a license plate, but not from me.