Antique Oak Extendable Pedestal Table

I got this set at an estate auction yesterday. I wanted the chairs. I think they are J&J Kohn/Thonet, made in Europe from the little bit of one label I could read.

The table is a mystery to me. I don’t think it goes with the chairs. It looks more like Mission or Craftsman style to me. There are no maker’s marks. The square shape seems to be much more rare than the round ones. I would like to find out who the maker is if anyone can help. Also the type of oak used. The mechanical parts work well and there are two included leaves. Overall in very good shape. The table is on small wheels.