I went out and looked at a picture of the knife set. They look like the same maker as knives that were sold under the brand name grand sharp.
Those were about $20 to $40 each, with shipping, but they were also laminated. Very good knives for the price at that.
Not sure about your set, they may be laminated, but I can't tell from the pictures. Still true that if they're decent, you can make good use of them.
The ad copy is pretty generic....says a little in a lot of words, but that's typical with this kind of stuff. The grand sharp ad copy was brief and honest, but they were going for something different at the time!