I just bought a super sailfish and don't know the year, haven't seen any serial numbers on it but it's been raining since I picked it up this weekend. It has an elephant ear rudder, aluminum mast and spars and a rotted sunfish sail. On first glance the boat appears to be fiberglass as the top seems to be a molded cap, but the top and bottom don't come together with a flange like you see on mkII's and sunfish, and it has the older logo plates as shown in the sunfish timeline elsewhere in the forum. I will try to add a few pics when the weather improves. Any help would be appreciated.