My 25 Seafari is a '72. I've found no hull ID other than the foil decal shown below. It's located on the inner liner just aft of the cabin bulkhead on the port side. There is no cast-in-place HIN on the transom, but the transom was redone in an earlier restoration, so I can't say with certainty whether it was ever there. Based on the fact that the ID # on the title is not in the usual HIN format, I suspect it never had a HIN.
Dave
