http://imgur.com/gallery/gvHpK/new
Here are a number of pictures I took of it. I picked this stone up at beach of Camperduin in the Netherlands, very recently the beach has been reinforced and enlarged (To deal with projected sea level rise) this is done with a shitload of sand from the bottom of the north sea.
Now, I know very little about stone age tools, but too me it really looks like it has been chipped down a lot on one side to create a cutting edge of sorts. I was wondering if there was someone on this subreddit who can confirm that this is indeed the case, or crush this fantasy that I found something cool.
If there is any information you need about how it looks, where I found it or something completely different before you can give me an answer, ask away!
You might try /r/whatisthisthing