I have had this object in my fossil collection for many years and it is only recently that I chose to get them out and study them. I can say this was found in whitby as I haven't been fossil hunting anywhere else.
Sadly not as Mike has explained, I also found a couple of Septarian Nodules that looked like a Dino egg on the Holderness coast and eventually gave them away to someone because they also thought it was a Dino egg after I explained what it really was.
Very nice find though.
I hope it's ok as I have included a couple of images of the two different specimens that I found.