Well I have been playing around with Google and I've managed to add a few more photos. First photo is of a vintage machine shop peace, very industrial, very cool.
Very unusual industrial object. I am thinking the base of a large table. It is cast-iron. I will be including this in my upcoming public warehouse sale.
I have six of these. Only one has a wood top like this. Several more look like the photo below steel top. They will all be in my sale.