I purchased a Sunfish several years ago for my cabin in Northern Wisconsin. The serial # is 87417. My boat is yellow with the original stripes. Original Rudder, centerboard Etc. and all are in really good shape. Although it has a brand new sail and replacement mast and boom rings I don't know how to tell what year my boat is. By the serial number does anyone know how to tell? I don't have any pictures at this moment but I could post them if someone can tell by the picture.