That is a very interesting relic and one that I have not seen before.
Could you take more pictures of it please?
Close ups and different angles front and back.
What material is it made of?
Also a measurement.
It is iron. It appears to be intact and not broken. It's about five and a half inches long and a inch and a half at its widest. Here are some more pictures
Thanks for the responses! Here is one more, it is iron also, looks to be some sort of lid with a rectangular hole in the middle. Any ideas? I'm pretty sure this one's a common item, I just don't know what it is.