The Strike was made by Seda. It was introduced in about 1976, used by a few decent slalom racers in the late 70s, and pretty much obsolete by 1982. It never had much success on the tougher international circuit. It was a relatively stable boat, not as fast or crisp handling as some, but very predictable.
It would be pretty much valueless as a racing boat today, boat design and technique has evolved so far since its time. sorry. You should take it out and try it though. Compared to the short, flat hull boats of today, it would astound you with its speed!