Hello, I have been given an old Fiberform boat, approx 23-24ft. It has an inboard small block V8 & single Mercruiser outboard drive. I believe the boat is a Fiberform San Juan cabin cruiser??? I have NO idea what year it is?? Early 70's for sure. Was built in Spokane, Washington. I have looked for the boats HIN with NO success, is it hiding on me, maybe I am looking in the wrong place?? Or is it older than a 1973, believe there was no HIN's then. I need to determine what year it is! Has a steel plate with boat info below steering controls. Says Model: 24K (then stamped into plate: S 73526)? Any help? CAN anyone tell me where the HIN should be or is there another way to determine the year? THANKS. Please email: wantitall4me@gmail.com