I bought this Caravelle 17 footer in 1977 from a co-worker who had money problems. He claimed it was a 1970 and that the 115 HP Mercury OB was a 1973. I have since learned that according to the serial number the outboard is a 1970 that someone took great pains to disguise as a newer model (blue trim,etc.) Or maybe not. I don't really care. It's either 40 years old or close to it and still runs well. But I would really like to pin down the age of the boat. The hull ID is on an aluminum tag at the helm station and reads "Caravelle, Jacksonville Arkansas, Model CX173, Serial NO. A27023. Thanks for any help.