I've heard of F&S scopes. I don't have one though. They were made sometime in the late 60's or early 70's and were a good budget scope. If it's an aluminum tube, it was probably made by Bushnell, and if it's a steel body was probably made by Weaver. These two company's made a lot of scopes to be used by other names, just like today with scope manufactures making scopes for other names to use----Cabela's use Bushnell to make many of their scopes just to name one. I have an old scope by Jason(they also made binoculars) which is owned by Bushnell, but has gone out of business. Very good scope like F&S scopes, but they don't have the glass coatings like today's scope lens' do, but still good scopes that I wouldn't be afraid to use on a small caliber rifle.
Del