I'd recommend you contact your local archeology people. Try the nearest university. There may be a pretty decent site where you picked those up that can add to the store of knowledge of our ancestors.
You look at these tools and think of how they were used to survive and THRIVE. Those people at times lived on the ragged edge, probably more often than not were only one bad season away from starvation. But they brought off the next generation who begat the next generation, and so on. Suddenly those tools mean a whole lot more than just a neat artifact I can put on a shelf, those tools had a share in building our world as it stands today. I'm not suggesting we all hold hands and sing "We Are The World" just yet, but think about how we all owe a debt to those unknown ancestors who just busted those rocks with care and concern for his children's best shot at survival.
Thanks for sharing the pics, they are great!