It's a Force 5. Designed a few years after the Laser in the early 1970s, I understand it's still raced in a few places in the US. I can't post links now, and have no idea of its value (though it looks pretty nice); others here will likely help you.
Yes; it's a Force 5; manufactured by AMF Alcort. Here's a link to the class' website: Welcome to the Force 5 Class
If the boat doesn't leak and is in good shape for its age, I would estimate its value around $1000-2000. But it might take some time to find a buyer since the class has lost much of its popularity.